{"title":"Blocks","description":"","products":[{"product_id":"ronstan-series-15-ball-bearing-utility-block-single-block-loop-head-71020","title":"Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head","description":"\u003cp\u003e\u003cstrong\u003eSeries 15 Ball Bearing Utility Block - Single Block, Loop Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmallest and lightest ball bearing block available\u003c\/li\u003e\n\u003cli\u003ePrecision molded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003cli\u003eSingle loop head blocks include an O-ring to separate running line from head lashing or fixing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eVangs, cunninghams and tweakers\u003c\/li\u003e\n\u003cli\u003eShock cord tensioning systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBB sheaves: UV stabilized acetal\u003c\/li\u003e\n\u003cli\u003eBall bearings: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCheeks: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408061522233,"sku":"OM-RONSTAN-SERIES15BALL-RF15101","price":20.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/71020XL.jpg?v=1781348113"},{"product_id":"ronstan-series-15-ball-bearing-utility-block-pivoting-lead-block-71025","title":"Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block","description":"\u003cp\u003e\u003cstrong\u003eSeries 15 Ball Bearing Utility Block - Pivoting Lead Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmallest and lightest ball bearing block available\u003c\/li\u003e\n\u003cli\u003ePrecision molded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003cli\u003eSingle loop head blocks include an O-ring to separate running line from head lashing or fixing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFeaturing a 4-point fastening for load distribution and low profile. 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They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks. Sideplates are hard-coat-anodized to resist corrosion. 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It's so light that it needs to be lashed down!\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eIntegrated stainless steel hub to accept lashing attachment and through-sheave becket\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuits up to 4mm(5\/32\") lashing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes 750mm (30\") x 1.7mm(1\/16\") diam lashing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003eControl lines on dinghies and catamarans to 5M(16')\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall bearings: stainless steel\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Nylon\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408082002233,"sku":"OM-RONSTAN-SERIES20BALL-RF25109","price":22.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55155XL.jpg?v=1781348132"},{"product_id":"ronstan-series-30-block-single-loop-top-55161","title":"Ronstan Series 30 Block - Single - Loop Top","description":"\u003cp\u003e\u003cstrong\u003eSeries 30 Block - Single - Loop Top\u003c\/strong\u003e\u003c\/p\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance\u003c\/li\u003e\n\u003cli\u003eHollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp data-empty=\"true\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSheave Ø:\u003c\/strong\u003e29mm(1-1\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMax. 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They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 45 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 1-3\/4 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 8 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 5\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 408 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 900 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408085606713,"sku":"OM-HARKEN-45MMSINGLEALUM-6235","price":118.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/80424XL.jpg?v=1781348136"},{"product_id":"harken-60mm-single-aluminum-element-block-w-swivel-80425","title":"Harken 60mm Single Aluminum Element Block w\/Swivel","description":"\u003cp\u003e\u003cstrong\u003e60mm Single Aluminum Element Block with Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 60 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 2-3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 14 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 1100 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 2425 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408086327609,"sku":"OM-HARKEN-60MMSINGLEALUM-6260","price":67.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/80425XL.jpg?v=1781348136"},{"product_id":"harken-60mm-double-aluminum-element-block-w-swivel-80427","title":"Harken 60mm Double Aluminum Element Block w\/Swivel","description":"\u003cp\u003e\u003cstrong\u003e60mm Double Aluminum Element Block with Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 60 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 2-3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 14 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 1375 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 3032 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408087900473,"sku":"OM-HARKEN-60MMDOUBLEALUM-6269","price":146.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/80427XL.jpg?v=1781348138"},{"product_id":"harken-60mm-double-aluminum-element-block-w-swivel-becket-80428","title":"Harken 60mm Double Aluminum Element Block w\/Swivel \u0026 Becket","description":"\u003cp\u003e\u003cstrong\u003e60mm Double Aluminum Element Block with Swivel \u0026amp; Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 60 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 2-3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 14 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 1375 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 3032 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408088523065,"sku":"OM-HARKEN-60MMDOUBLEALUM-6270","price":159.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/80428XL.jpg?v=1781348138"},{"product_id":"harken-60mm-triple-aluminum-element-block-w-swivel-80429","title":"Harken 60mm Triple Aluminum Element Block w\/Swivel","description":"\u003cp\u003e\u003cstrong\u003e60mm Triple Aluminum Element Block with Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. 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A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 60 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 2-3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 14 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 1650 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 3638 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408089997625,"sku":"OM-HARKEN-60MMTRIPLEALUM-6273","price":200.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/80430XL.jpg?v=1781348140"},{"product_id":"ronstan-series-30-ball-bearing-block-single-loop-top-55171","title":"Ronstan Series 30 Ball Bearing Block - Single - Loop Top","description":"\u003cb\u003eSeries 30 Ball Bearing Block - Single - Loop Top\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLight weight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVersatile head fittings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan be fitted with a shackle in either of two planes to allow correct alignment of the block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePrimary lead blocks on dinghies and catamarans\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl lines on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact modified, fiber reinforced and U.V. stabilized Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load straps and head fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t28g(1.0oz)\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408092356921,"sku":"OM-RONSTAN-SERIES30BALL-RF30101","price":26.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55171XL.jpg?v=1781348142"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-single-becket-swivel-shackle-head-55173","title":"Ronstan Series 30 Ball Bearing Orbit Block™ - Single - Becket - Swivel Shackle Head","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Single  - Becket - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile thru-sheave becket\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t600kg(1,320lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t32g(1.1oz)\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408093962553,"sku":"OM-RONSTAN-SERIES30BALL-RF35100","price":28.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55173XL.jpg?v=1781348144"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-stand-up-swivel-55175","title":"Ronstan Series 30 Ball Bearing Orbit Block™ - Stand Up Swivel","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Stand Up Swivel\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t600kg(1,320lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t33g(1.2oz)\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408095437113,"sku":"OM-RONSTAN-SERIES30BALL-RF35140","price":32.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55175XL.jpg?v=1781348145"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-cheek-55176","title":"Ronstan Series 30 Ball Bearing Orbit Block™ - Cheek","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Cheek\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t600kg(1,320lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t21g(0.7oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408096190777,"sku":"OM-RONSTAN-SERIES30BALL-RF35151","price":24.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55176XL.jpg?v=1781348146"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-double-55177","title":"Ronstan Series 30 Ball Bearing Orbit Block™ - Double","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Double\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t450kg(990lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t900kg(1,980lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t50g(1.7oz)\u003cbr\u003e\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408096911673,"sku":"OM-RONSTAN-SERIES30BALL-RF35202","price":40.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55177XL.jpg?v=1781348146"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-triple-55178","title":"Ronstan Series 30 Ball Bearing Orbit Block™ - Triple","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Triple\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,100kg(2,430lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t73g(2.6oz)\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408097698105,"sku":"OM-RONSTAN-SERIES30BALL-RF35302","price":55.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55178XL.jpg?v=1781348147"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-triple-becket-55179","title":"Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Triple - Becket\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,100kg(2,430lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t75g(2.6oz)\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408098419001,"sku":"OM-RONSTAN-SERIES30BALL-RF35312","price":57.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55179XL.jpg?v=1781348148"},{"product_id":"ronstan-series-40-all-purpose-block-single-universal-head-55201","title":"Ronstan Series 40 All Purpose Block - Single - Universal Head","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t71g(2.5oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408105791801,"sku":"OM-RONSTAN-SERIES40ALL-RF41100","price":28.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55201XL.jpg?v=1781348155"},{"product_id":"schaefer-clamp-on-furling-line-stanchion-lead-block-1-ball-bearing-74705","title":"Schaefer Clamp-On Furling Line Stanchion Lead Block - 1\" Ball Bearing","description":"\u003cp\u003e\u003cstrong\u003eClamp-On Furling Line Stanchion Lead Block - 1\" Ball Bearing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainless steel cage and strap ensure durability. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStanchions 1\" (25mm) in diameter\u003c\/li\u003e\n\u003cli\u003e1-7\/16\" (37mm) Sheave Diameter\u003c\/li\u003e\n\u003cli\u003eMaximum 1\/2\" (12mm) line size\u003c\/li\u003e\n\u003cli\u003eSafe Working Load = 1000 lbs (450kg) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408108020025,"sku":"OM-SCHAEFERMARI-CLAMPONFURLING-30034","price":73.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74705XL.jpg?v=1781348157"},{"product_id":"ronstan-series-40-all-purpose-block-single-stand-up-55205","title":"Ronstan Series 40 All Purpose Block - Single - Stand Up","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Stand Up\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.  Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMount with 2 x 5mm (3\/16\") fasteners (not supplied)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. 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Stainless Steel base distributes loads to a larger surface area.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Dia. 1-7\/16\" (37 mm)\u003c\/li\u003e\n\u003cli\u003eMax Line 7\/16\" (11 m)\u003c\/li\u003e\n\u003cli\u003eLength 2-7\/8\" (73 mm)\u003c\/li\u003e\n\u003cli\u003eWidth 1-3\/4\" (44 mm)\u003c\/li\u003e\n\u003cli\u003eHeight 3\/4\" (19 mm)\u003c\/li\u003e\n\u003cli\u003eFasteners (4) #10- RH (5 mm)\u003c\/li\u003e\n\u003cli\u003eC\/C 2-3\/8\" (60 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1000 lbs. (450 kg)\u003c\/li\u003e\n\u003cli\u003eWeight Alum. 2.5 oz. (71 g) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408110215481,"sku":"OM-SCHAEFERMARI-SERIES3FLAT-30309","price":72.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74707XL.jpg?v=1781348159"},{"product_id":"schaefer-twin-sheet-block-f-1-1-4-t-track-black-74708","title":"Schaefer Twin Sheet Block f\/1-1\/4\" T-Track - Black","description":"\u003cp\u003e\u003cstrong\u003eTwin Sheet Block for 1-1\/4\" T-Track - Black\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex™\/Teflon™ bearing for a low-friction, high strength sheave. Articulating sheave allows for a proper lead. Pin stop makes adjustment simple. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTrack Size 1-1\/4\" x 3\/16\" (32 mm x 5 mm)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Length- 38' (11.5m)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Weight- 18000 lbs. (8182kg)\u003c\/li\u003e\n\u003cli\u003eMax. Sail Area- 715 sq. ft. (66 m2)\u003c\/li\u003e\n\u003cli\u003eSheave Diameter- 2\" (51 mm)\u003c\/li\u003e\n\u003cli\u003eMax Line- (2) 5\/8\" (16 mm)\u003c\/li\u003e\n\u003cli\u003eLength- 4-1\/2\" (114 mm)\u003c\/li\u003e\n\u003cli\u003eWidth- 1-3\/4\" (44 mm)\u003c\/li\u003e\n\u003cli\u003eHeight- 4-1\/2\" (114 mm)\u003c\/li\u003e\n\u003cli\u003eBearing Height 2-3\/4\" (70 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 3500 lbs. (1590 kg)\u003c\/li\u003e\n\u003cli\u003eWeight 1 lb. 7 oz. (652 g) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408111132985,"sku":"OM-SCHAEFERMARI-TWINSHEETBLOCK-3297","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74708XL.jpg?v=1781348160"},{"product_id":"ronstan-series-40-ball-bearing-block-single-universal-head-55210","title":"Ronstan Series 40 Ball Bearing Block - Single - Universal Head","description":"\u003cb\u003eSeries 40 Ball Bearing Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e    5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t70g(2.5oz)\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408111231289,"sku":"OM-RONSTAN-SERIES40BALL-RF40100","price":33.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55210XL.jpg?v=1781348160"},{"product_id":"schaefer-single-aluminum-block-51mm-sheave-74715","title":"Schaefer Single Aluminum Block - 51mm Sheave","description":"\u003cp\u003e\u003cstrong\u003eSingle Aluminum Block - 51mm Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Dia. 2\" (51mm)\u003c\/li\u003e\n\u003cli\u003eThickness 15\/16\" (24mm)\u003c\/li\u003e\n\u003cli\u003eWidth 2 1\/8\" (54mm)\u003c\/li\u003e\n\u003cli\u003eLength 4 13\/32\" (112mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1750 lbs. (795kg)\u003c\/li\u003e\n\u003cli\u003eWeight 5oz. (142g)\u003c\/li\u003e\n\u003cli\u003eMax. Line size 7\/16\" (11mm) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408116048185,"sku":"OM-SCHAEFERMARI-SINGLEALUMINUM-50405","price":74.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74715XL.jpg?v=1781348164"},{"product_id":"schaefer-series-5-flat-base-alum-cheek-delrin-sheave-74716","title":"Schaefer Series 5 Flat Base\/Alum Cheek\/Delrin Sheave","description":"\u003cp\u003e\u003cstrong\u003eSeries 5 Flat Base\/Alum Cheek\/Delrin Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Diameter 2\" (51 mm)\u003c\/li\u003e\n\u003cli\u003eMax. Line 7\/16\" (11 mm)\u003c\/li\u003e\n\u003cli\u003eLength 3-5\/8\" (92 mm)\u003c\/li\u003e\n\u003cli\u003eWidth 2-7\/32\" (57 mm)\u003c\/li\u003e\n\u003cli\u003eHeight 7\/8\" (22 mm)\u003c\/li\u003e\n\u003cli\u003eFasteners (4) #10 RH (5 mm)\u003c\/li\u003e\n\u003cli\u003eC\/C 3\" (76 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1750 lbs. (795 kg)\u003c\/li\u003e\n\u003cli\u003eWeight 5.9 oz. (167g)\u003c\/li\u003e\n\u003cli\u003eMax. Line 7\/16\" (11mm)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408117063993,"sku":"OM-SCHAEFERMARI-SERIES5FLAT-50411","price":87.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74716XL.jpg?v=1781348165"},{"product_id":"ronstan-nylatron-sheave-box-single-upright-lead-block-55219","title":"Ronstan Nylatron Sheave Box - Single Upright Lead Block","description":"\u003cb\u003eNylatron Sheave Box - Single Upright Lead Block\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.When mounted in an inverted position, are frequently used as upright leads.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003eThe external tabs can be formed to fit the spar profile before fastening\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eTypically used in dinghy spars for control lines such as outhauls\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t22mm(7\/8\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t3mm(1\/8\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e\t3mm(1\/8\")\u003cbr\u003e\u003cb\u003eFastener Ø:\u003c\/b\u003e\t5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t160kg(350lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t350kg(700lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t30g(1.1oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408117358905,"sku":"OM-RONSTAN-NYLATRONSHEAVE-RF453","price":33.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55219XL.jpg?v=1781348166"},{"product_id":"ronstan-series-40-ratchet-orbit-block-single-auto-swivel-shackle-head-55220","title":"Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head","description":"\u003cb\u003eSeries 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic Ratchet\u003c\/b\u003e\u003cbr\u003eWith automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome Ratchet Block Holding Power\u003c\/b\u003e\u003cbr\u003eQuite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. The Series 40 delivers up to 14:1 holding power, almost double that of our nearest competititor.\u003cbr\u003e\u003cbr\u003eThe unique sheave design has 8 gripping faces which directly resist loaded line movement. Traditional designs have an angled resistance to line movement.  Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSimple and Secure Attachment\u003c\/b\u003e\u003cbr\u003eThe Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins.\u003cbr\u003e\u003cbr\u003eThe system is compatible with Dyneema®\/Spectra® strops, webbing and carbon connection points - much more so than steel loop tops or shackles.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSmooth Easing of Sheets\u003c\/b\u003e\u003cbr\u003eWith auto models the sheet runs out smoothly and freely as soon as the ratchet mechanism disengages. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eLow Profile Stand-Up Kit Allows  0™ or 90™ Alignment\u003c\/b\u003e\u003cbr\u003eStand-up kits feature a clatter-free rubber boot.  You can attach the Dyneema® link so that the block is aligned with the stand-up base or across it.  It's a neat low-profile solution which allows full articulation.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUp to 14:1 holding power - highest available!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFully Automatic load sensing ratchet engagemen\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlmited block rotation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy mainsheet systems\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet fine tune systems on sportsboats \u0026amp; small keel boats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems on sportsboats using RF7 mainsheet swivel cleat unit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker and job sheets on dinghies - especially modern asymmetric classes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: Hard anodised Aluminium\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    9mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t175kg(385lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t500kg(1,100lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t44g(1.5oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408118178105,"sku":"OM-RONSTAN-SERIES40RATCHE-RF46100","price":77.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55220XL.jpg?v=1781348167"},{"product_id":"schaefer-spring-loaded-lined-slide-aluminum-f-1-t-track-74718","title":"Schaefer Spring Loaded\/Lined Slide\/Aluminum f\/1\" T-Track","description":"\u003cp\u003e\u003cstrong\u003eSpring Loaded\/Lined Slide\/Aluminum for 1\" T-Track\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTrack Size 1\" x 1\/8\" (25 mm x 3 mm)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Length- 27' (8m)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Weight- 5000 lbs. (2270 kgs)\u003c\/li\u003e\n\u003cli\u003eSail Area- 315 sq. ft (29 m2)\u003c\/li\u003e\n\u003cli\u003eSheave Diameter 2\" (51 mm)\u003c\/li\u003e\n\u003cli\u003eMax Line 7\/16\" (11 mm)\u003c\/li\u003e\n\u003cli\u003eLength 3\" (76 mm)\u003c\/li\u003e\n\u003cli\u003eWidth 1-1\/4\" (31 mm)\u003c\/li\u003e\n\u003cli\u003eHeight 4-5\/32\" (105 mm)\u003c\/li\u003e\n\u003cli\u003eBearing Height 2-7\/32\" (56 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1750 lbs. (795 kg)\u003c\/li\u003e\n\u003cli\u003eWeight 7.0 oz. (198 g)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408118899001,"sku":"OM-SCHAEFERMARI-SPRINGLOADEDLI-50482","price":200.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74718XL.jpg?v=1781348167"},{"product_id":"schaefer-single-stainless-steel-block-51mm-sheave-74724","title":"Schaefer Single Stainless Steel Block - 51mm Sheave","description":"\u003cp\u003e\u003cstrong\u003eSingle Stainless Steel Block - 51mm Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working load. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSheave Dia. 2\" (51mm)\u003c\/p\u003e\u003cp\u003eThickness 15\/16\" (24mm)\u003c\/p\u003e\u003cp\u003eWidth 2 1\/8\" (54mm)\u003c\/p\u003e\u003cp\u003eLength 4 13\/32\" (112mm)\u003c\/p\u003e\u003cp\u003eSWL 1750 lbs. (795kg)\u003c\/p\u003e\u003cp\u003eWeight 7.1oz (201g)\u003c\/p\u003e\u003cp\u003eMax Line 7\/16\" (11mm) \u003c\/p\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":53408119947577,"sku":"OM-SCHAEFERMARI-SINGLESTAINLES-50505","price":85.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/74724XL.jpg?v=1781348168"},{"product_id":"ronstan-series-25-ball-bearing-orbit-block-lashing-110654","title":"Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing","description":"\u003cp\u003e\u003cstrong\u003eSeries 25 Ball Bearing Orbit Block™ - Lashing\u003c\/strong\u003e\u003c\/p\u003e\u003cp id=\"isPasted\"\u003eSingle sheave ball bearing block with becket and lashing head.\u003c\/p\u003e\u003cp id=\"isPasted\"\u003eThe Series 25 Ball Bearing Orbit Blocks™ deliver superior strength, reduced weight, and exceptional performance for high-demand dinghy and small boat applications.\u003c\/p\u003e\u003cp\u003eDesigned with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength-to-weight ratio. Featuring Ronstan’s renowned high-compression strength acetal bearing system, the Series 25 BB Orbit Blocks are a lightweight yet durable solution, ideal for control line systems such as mainsheet and spinnaker sheet turning blocks, cunninghams, and cascading vangs on dinghies up to 4 metres.\u003c\/p\u003e\u003cp\u003eEach block has a stainless steel hub for versatile lashing attachments and through-sheave becket functionality, making them adaptable to a wide range of rigging setups. The hub accommodates up to 4mm (5\/32\") lashing and ensures maximum efficiency without compromising reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli id=\"isPasted\"\u003e2-stage ball bearing system.\u003c\/li\u003e\n\u003cli\u003eSuits up to 8mm (5\/16”) lines.\u003c\/li\u003e\n\u003cli\u003eHollow hub for becket take-off.\u003c\/li\u003e\n\u003cli\u003eLashing blocks suit up to 4mm (5\/32”) lashing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli id=\"isPasted\"\u003eMax. Rope diameter (in): 5\/16\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 1\u003c\/li\u003e\n\u003cli\u003eB.L. (lb): 1650\u003c\/li\u003e\n\u003cli\u003eWeight (oz): 0.5\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet and spinnaker sheet turning blocks on dinghies to 4m (13ft). \u003c\/li\u003e\n\u003cli\u003eControl lines.\u003c\/li\u003e\n\u003cli\u003eCascading vangs.\u003c\/li\u003e\n\u003cli\u003eLeech lines \u0026amp; cunninghams.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli id=\"isPasted\"\u003eBB Sheave and balls: High compression strength acetal.\u003c\/li\u003e\n\u003cli\u003eFrame\/cheeks: Toughened, glass-fiber-reinforced nylon.\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408123126073,"sku":"OM-RONSTAN-SERIES25BALL-RF28109","price":23.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/110654XL.jpg?v=1781348171"},{"product_id":"ronstan-series-25-ball-bearing-hhl-lashing-orbit-block-110655","title":"Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block™","description":"\u003cp id=\"isPasted\"\u003e\u003cstrong\u003eSeries 25 Ball Bearing HHL Lashing Orbit Block™\u003c\/strong\u003e\u003c\/p\u003e\u003cp id=\"isPasted\"\u003eSingle sheave ball bearing high load block with becket hub option and lashing head.\u003c\/p\u003e\u003cp id=\"isPasted\"\u003eThe Series 25 Ball Bearing Orbit Blocks™ deliver superior strength, reduced weight, and exceptional performance for high-demand dinghy and small boat applications.\u003c\/p\u003e\u003cp\u003eDesigned with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength-to-weight ratio. Featuring Ronstan’s renowned high-compression strength acetal bearing system, the Series 25 BB Orbit Blocks are a lightweight yet durable solution, ideal for control line systems such as mainsheet and spinnaker sheet turning blocks, cunninghams, and cascading vangs on dinghies up to 4 metres.\u003c\/p\u003e\u003cp\u003eEach block has a stainless steel hub for versatile lashing attachments and through-sheave becket functionality, making them adaptable to a wide range of rigging setups. The hub accommodates up to 4mm (5\/32\") lashing and ensures maximum efficiency without compromising reliability.\u003c\/p\u003e\u003cp\u003eThe range also includes a High Load (HHL) variant – the RF28109HL – which is equipped with a Grade 2205 stainless steel sheave and bearing race, paired with Grade 304 stainless steel ball bearings. These HHL blocks are purpose-built for high-load applications and are increasingly in demand for modern performance and foiling boats using small-diameter lines to carry significant loads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2-stage ball bearing system.\u003c\/li\u003e\n\u003cli\u003eSuits up to 8mm (5\/16”) lines.\u003c\/li\u003e\n\u003cli\u003eHollow hub for becket take-off.\u003c\/li\u003e\n\u003cli\u003eLashing blocks suit up to 4mm (5\/32”) lashing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul style='box-sizing: border-box; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-variant-emoji: inherit; font-weight: 400; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\"; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; margin: 0px; padding: 0px; vertical-align: baseline; list-style: inside disc; color: rgb(33, 37, 41); letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eMax. Rope diameter (in): 5\/16\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eM.W.L. (lb): 880\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eSheave diameter (in): 1\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eB.L. (lb): 2650\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eWeight (oz): 1.2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul style='box-sizing: border-box; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-variant-emoji: inherit; font-weight: 400; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\"; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; margin: 0px; padding: 0px; vertical-align: baseline; list-style: inside disc; color: rgb(33, 37, 41); letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eMainsheet and spinnaker sheet turning blocks on dinghies to 4m (13ft). \u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eControl lines.\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eCascading vangs.\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border: 0px; font: inherit; margin: 15px 0px; padding: 0px; vertical-align: baseline; display: list-item; list-style-type: disc;\"\u003eLeech lines \u0026amp; cunninghams.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFrame\/cheeks: Toughened, glass fibre reinforced nylon.  \u003c\/li\u003e\n\u003cli\u003eHHL Sheave and bearing race: Grade 2205 stainless steel with Grade 304 stainless steel ball bearings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408124076345,"sku":"OM-RONSTAN-SERIES25BALL-RF28109HL","price":90.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/110655XL.jpg?v=1781348172"},{"product_id":"ronstan-swivel-cleat-base-55232","title":"Ronstan Swivel Cleat \u0026 Base","description":"\u003cb\u003eSwivel Cleat \u0026amp; Base\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSwivel cleat bases permit easy cleating and releasing from any angle.Sheave can be relocated to allow the control line to feed from below\u003cbr\u003eComes complete with a 28mm(1-1\/4\") ball bearing sheave, small 'T-Cleat and the 'Fast Track' fairlead.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eTypically fitted to dinghy and catamaran spars for halyard, cunningham or outhaul control.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterial:\u003c\/b\u003e\u003cbr\u003eFiber reinforced Nylon body\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eRope Ø:\u003c\/b\u003e    2 - 8mm(3\/32\" - 5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t150kg(330lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t100g(3.5oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408126468409,"sku":"OM-RONSTAN-SWIVELCLEATBAS-RF5","price":73.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55232XL.jpg?v=1781348174"},{"product_id":"ronstan-series-50-all-purpose-block-single-universal-head-55253","title":"Ronstan Series 50 All Purpose Block - Single - Universal Head","description":"\u003cb\u003eSeries 50 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eMainsheet and halyard applications, vang and spinnaker control lines on boats to  10M(33')\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t50mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    12mm(1\/2\")\u003cbr\u003e\u003cb\u003eMax. Pin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,500kg(3,310lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t118g(4.1oz)\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408140034361,"sku":"OM-RONSTAN-SERIES50ALL-RF51100","price":36.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55253XL.jpg?v=1781348187"},{"product_id":"ronstan-series-55-ball-bearing-orbit-block-single-becket-swivel-head-55256","title":"Ronstan Series 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head","description":"\u003cb\u003eSeries 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub.\u003cbr\u003e\u003cbr\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.\u003cbr\u003e\u003cbr\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.\u003cbr\u003e \u003cbr\u003e\u003cb\u003eHighest Working Load In Its Class\u003c\/b\u003e\u003cbr\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises load performance. The  proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. \u003cbr\u003e\u003cbr\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUltra Lightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated becket\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9M(30')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, Vang and Backstay application on boats to 8M(26')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIdeal use for mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlso ideal with halyard, vang and backstay applications on boats to 8M(26')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on sportsboats and small keel boats (lateral lead blocks)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregmented SK75 Dyneema®\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Carbon fiber reinforced, PTFE impregnated Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead fitting: Grade 316 stainless steel.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t55mm(2-5\/32\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    10mm(3\/8\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t500kg(1,100lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t88g(3.1oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408141476153,"sku":"OM-RONSTAN-SERIES55BALL-RF55110","price":50.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55256XL.jpg?v=1781348188"},{"product_id":"ronstan-series-55-ratchet-orbit-block-single-swivel-head-auto-manual-55257","title":"Ronstan Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto \u0026 Manual","description":"\u003cb\u003eSeries 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto \u0026amp; Manual\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic Ratchet Block\u003c\/b\u003e\u003cbr\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cb\u003eAwesome Ratchet Block Holding Power\u003c\/b\u003e\u003cbr\u003eQuite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26')\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8M(26')\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on sportsboats and small keel boats (lateral lead blocks)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: Hard anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Aceetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t55mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    10mm(1\/2\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t650kg(1,430lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t82g(2.9oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408142229817,"sku":"OM-RONSTAN-SERIES55RATCHE-RF56100","price":93.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55257XL.jpg?v=1781348189"},{"product_id":"ronstan-series-25-utility-block-single-swivel-shackle-head-55259","title":"Ronstan Series 25 Utility Block - Single - Swivel Shackle Head","description":"\u003cb\u003eSeries 25 Utility Block™ - Single - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEconomical\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters, etc on larger boats\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 Stainless Steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t150kg(330lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t20g(0.7oz) \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408143769913,"sku":"OM-RONSTAN-SERIES25UTILIT-RF573","price":26.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55259XL.jpg?v=1781348190"},{"product_id":"ronstan-series-75-core-block-single-55264","title":"Ronstan Series 75 Core Block™ - Single","description":"\u003cb\u003eSeries 75 Core Block™ - Single\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eCore Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUniversal Bearing\u003c\/b\u003e\u003cbr\u003eDynamic and high static load performance\u003cbr\u003e\u003cbr\u003eThe Ronstan Universal Bearing incorporates our proven 2-stage bearing system\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStage 1\u003c\/b\u003e - Under moderate loads, Acetal ball bearings ensure minimum friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStage 2\u003c\/b\u003e - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance.\u003cbr\u003e\u003cbr\u003eAdditionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAlloy Cheek Plates\u003c\/b\u003e\u003cbr\u003eBlock cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings.  Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUniversal head\u003c\/b\u003e\u003cbr\u003eThe head assembly incorporates a brass bearing washer to provide smooth 360™ rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0™ or 90™.\u003cbr\u003e\u003cbr\u003eShackles are high quality forged grade 316 stainless steel.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eClass leading performance and sleek, contemporary styling\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent dynamic and high static load performance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLess than half the friction of the nearest competitor\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUniversal head with full 3-axis articulation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead posts can be locked at 0 or 90 degrees, by using a 2.5mm Hex\/Allen Key\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCentral hub hole can be used as a becket take-off or tie-up point\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eIdeal for mainsheet, halyard and spinnaker sheet applications on boats to 14M (46')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVarious control line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: U.V. stabilized Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek body: Aluminium Alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShackle, head post \u0026amp; hub: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t75mm(3\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t14mm(9\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t1,500kg(3,300lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t3,000kg(6,600lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t354g(12.5oz)\u003cbr\u003e\u003cbr\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408146620729,"sku":"OM-RONSTAN-SERIES75CORE-RF74100","price":153.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/55264XL.jpg?v=1781348193"},{"product_id":"seasure-clip-f-1-stanchion-100456","title":"SeaSure Clip f\/1\" Stanchion","description":"\u003cp\u003e\u003cstrong\u003eClip for 1\" Stanchion\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis stainless steel clip is for a 1 in. stanchion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eWeight: 0.019kg\u003c\/li\u003e\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"SeaSure","offers":[{"title":"Default Title","offer_id":53408162119993,"sku":"OM-SEASURE-CLIP1STANCHION-2505CRD","price":19.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/100456XL.jpg?v=1781348207"},{"product_id":"harken-57mm-aluminum-low-load-black-magic-block-w-swivel-93959","title":"Harken 57mm Aluminum Low Load Black Magic Block w\/Swivel","description":"\u003cp\u003e\u003cstrong\u003e57mm Aluminum Low Load Black Magic Block with Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBlack Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep the line from twisting. Low-load blocks have red isolators. They use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless head posts. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 57mm\/2-1\/4in\u003c\/li\u003e\n\u003cli\u003eLength: 119mm\/4-11\/16in\u003c\/li\u003e\n\u003cli\u003eWeight: 154g\/5.44oz\u003c\/li\u003e\n\u003cli\u003eShackle Pin: 6mm\/1\/4in\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 12mm \/ 7\/16in\u003c\/li\u003e\n\u003cli\u003eMaximum Working Load: 7\/16kg \/ 1655lbs\u003c\/li\u003e\n\u003cli\u003eBreaking Load: 1500kg \/ 3300lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408174997817,"sku":"OM-HARKEN-57MMALUMINUMLO-3226","price":211.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/93959XL.jpg?v=1781348219"},{"product_id":"ronstan-series-50-ball-bearing-block-single-loop-top-105700","title":"Ronstan Series 50 Ball Bearing Block - Single Loop Top","description":"\u003cp\u003e\u003cstrong\u003eSeries 50 Ball Bearing Block - Single Loop Top\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli id=\"isPasted\"\u003eLow friction, 2-stage ball bearing system\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli id=\"isPasted\"\u003eMax. Rope diameter (in): 1\/2\"\u003c\/li\u003e\n\u003cli\u003eM.W.L. (lb): 1100lbs\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2\"\u003c\/li\u003e\n\u003cli\u003eB.L. (lb): 3310lbs\u003c\/li\u003e\n\u003cli\u003eWeight (oz): 3.4oz\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal ball bearings\u003c\/li\u003e\n\u003cli\u003eUV-stabilized acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003cli\u003eImpact and UV-resistant, fiber-reinforced nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":53408184238393,"sku":"OM-RONSTAN-SERIES50BALL-RF50101","price":49.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/105700XL.jpg?v=1781348228"},{"product_id":"harken-40mm-carbo-block-single-w-swivel-bracket-84444","title":"Harken 40mm Carbo Block Single w\/Swivel \u0026 Bracket","description":"\u003cp\u003e\u003cstrong\u003e40mm Carbo Block Single with Swivel \u0026amp; Bracket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 40 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 1-9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 10 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 220 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 485 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408196264249,"sku":"OM-HARKEN-40MMCARBOBLOCK-2637","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/84444XL.jpg?v=1781348239"},{"product_id":"harken-40mm-29mm-carbo-traveler-block-84445","title":"Harken 40mm\/29mm Carbo Traveler Block","description":"\u003cp\u003e\u003cstrong\u003e40mm\/29mm Carbo Traveler Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 40 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 1-9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 8 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 5\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 150 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 330 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:mm5umZtm ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53408196952377,"sku":"OM-HARKEN-40MM29MMCARBO-2649","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/5067\/6793\/files\/84445XL.jpg?v=1781348239"}],"url":"https:\/\/www.outdoorsmarine.com\/collections\/blocks\/fishing-accessories.oembed","provider":"Outdoors Marine","version":"1.0","type":"link"}