{"title":"Harken Zircon Blocks","description":"\u003cp\u003eZircon Blocks are high-performance sailing hardware designed for optimal strength and low friction. These blocks are commonly used in competitive and recreational sailing for precise and efficient rope handling.\u003c\/p\u003e","products":[{"product_id":"harken-40-mm-zircon-block-becket","title":"Harken 40mm Zircon Block Becket","description":"\u003ch1 class=\"split-last special-char\"\u003e\u003c\/h1\u003e\n\u003cp\u003eHarken Zircon blocks feature industrial ceramic ball bearings contained in caged races to ensure maximum efficiency. With sizes ranging from 40-57 mm sheaves and the option for single or double blocks, these blocks are the most efficient choice for smaller boats. Becket Part No. 2191 has a maximum working load of 115 kg (250 lbs) and can accommodate line diameters up to 8 mm (5\/16 in).\u003c\/p\u003e\n\u003cdiv class=\"top-info__footer\"\u003e\n\u003cdiv class=\"top-info__price\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":45688063918389,"sku":"HAR-2191","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/products\/harken-40-mm-zircon-block-becket-446795.jpg?v=1688951602"},{"product_id":"harken-40-mm-zircon-double-block","title":"Harken 40mm Zircon Double Block","description":"\u003cp\u003eHarken's 40mm Zircon Double Block, Part No. 2192, has a maximum working load of 230 kg (or 500 lbs) and can accommodate lines up to 8 mm (or 5\/16 in) in diameter. Its 40 mm (or 1 9\/16 in) sheave is made of industrial ceramic ball bearings mounted inside caged races for optimal performance. These bearings are kept separated by cages to prevent friction and maximize efficiency, making this block the most efficient option for small boats from Harken. Available in both single and double blocks with or without beckets, the Zircon block helps trimmers quickly adjust sail shapes to changing conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":45688063885621,"sku":"HAR-2192","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/products\/harken-40-mm-zircon-double-block-668946.jpg?v=1688951603"},{"product_id":"harken-40-mm-zircon-double-block-becket","title":"Harken 40mm Zircon Double Block Becket","description":"\u003ch1 class=\"split-last special-char\"\u003e\u003c\/h1\u003e\n\u003cp\u003eUtilize Harken's 40 mm Zircon Double Block Becket, Part No. 2193 for a maximum working load of 230 kg (500 lbs) and a maximum line diameter of 8 mm (5\/16 in). With a 40 mm sheave (1 9\/16 in) and industrial ceramic ball bearings mounted inside caged races, Zircon blocks offer exceptional performance for sail trimming. These bearings are carefully separated to prevent bunching, contact, and interference, making it the most efficient small boat block by Harken. Available in 40- and 57-mm sheaves, in single and double block variations, with or without beckets.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":45688063852853,"sku":"HAR-2193","price":96.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/products\/harken-40-mm-zircon-double-block-becket-714313.jpg?v=1688951603"},{"product_id":"harken-40mm-zircon-block","title":"Harken 40mm Zircon Block","description":"\u003cp\u003eThe Harken 40 mm Zircon Block, part number 2190, has a maximum working load of 115 kg (250 lb). It can handle a maximum line diameter of 8 mm (5\/16 in) and has a sheave diameter of 40 mm (1 9\/16 in). This block is designed for efficient use on small boats, with the help of industrial ceramic ball bearings and caged races that keep the bearings separated for optimal performance. Available in 40- and 57-mm sheaves, in both single and double blocks with or without beckets, Zircon blocks are the top choice for sailors looking to easily adjust sail shapes to changing conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":46647157031221,"sku":"HAR-2190","price":53.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_940fe560-482e-47d0-88f2-475bb6c6afdb.webp?v=1694445565"},{"product_id":"harken-57mm-single-zircon-block","title":"Harken 57mm Single Zircon Block","description":"\u003cp\u003eThe Harken 57mm Single Zircon Block (Part No. 2195) has a maximum working load of 150 kg (330 lb) and can handle line Ø up to 10 mm (3\/8 in). Its sheave has a diameter of 57 mm (2 1\/4 in) and is equipped with industrial ceramic ball bearings mounted within caged races for optimal efficiency. The cages prevent the bearings from bunching, touching, or stopping each other, making this block one of Harken's most efficient choices for small boats. The Zircon block series also includes 40- and 57-mm sheaves in single and double configurations, with or without beckets.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":46963618185525,"sku":"HAR-2195","price":62.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/HAR-2195.webp?v=1697826466"},{"product_id":"harken-57mm-single-zircon-block-with-becket","title":"Harken 57mm Single Zircon Block with Becket","description":"\u003cp\u003eThe Harken 57mm Single Zircon Block with Becket is designed to allow trimmers to quickly adjust sail shapes to changing conditions. Featuring industrial ceramic ball bearings encased in caged races, these blocks maintain efficiency by preventing the bearings from bunching, touching, or stopping each other. Available in 40- and 57-mm sheaves, in both single and double block options, with or without beckets, these blocks are capable of handling a maximum working load of 150 kg (330 lbs) and a maximum line diameter of 10 mm (3\/8 in).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":46963618447669,"sku":"HAR-2196","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/HAR-2196.webp?v=1697826487"},{"product_id":"harken-57mm-double-zircon-block","title":"Harken 57mm Double Zircon Block","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Harken 57mm Double Zircon Block is designed to immediately adjust sail shapes to new conditions. Its industrial ceramic ball bearings and caged races make it the most efficient small boat block available. This block is offered in 40- and 57-mm sheaves, with or without beckets, and has a maximum working load of 300 kg (660 lb) and maximum line diameter of 10 mm (3\/8 in). Part No. 2197.\u003c\/p\u003e\n\u003cdiv class=\"col title\"\u003e\n\u003cdiv class=\"social-share\"\u003e\u003cspan class=\"top-info__price-price\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":46963618545973,"sku":"HAR-2197","price":122.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/HAR-2197.webp?v=1697826255"},{"product_id":"harken-57mm-double-zircon-block-with-becket","title":"Harken 57mm Double Zircon Block with Becket","description":"\u003cp\u003eThe Harken 57mm Double Zircon Block with Becket allows trimmers to quickly adjust sail shapes for varying conditions. At its core, this high-performance block utilizes industrial ceramic ball bearings housed in separate cages to prevent friction and maximize efficiency. Available with 40- and 57-mm sheaves, in single or double blocks, and with or without beckets, this is Harken's most efficient small boat block yet. With a maximum working load of 300 kg (660 lb) and a maximum line diameter of 10 mm (3\/8 in), it's a top choice for sailors.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":46963618808117,"sku":"HAR-2198","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/HAR-2198.webp?v=1697826362"},{"product_id":"harken-40mm-zircon-catmaran-mainsheet-system","title":"Harken 40mm Zircon Catamaran Mainsheet System","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis new, more compact Harken Zircon ceramic bearing mainsheet system is a testimonial to the power of collaboration. The previous generation of GP mainsheet system had become the standard among catamaran sailors at the highest levels. But these sailors wondered if we could deliver elite performance in a lighter, tighter package. So, we shrunk everything — except what it can do. At the heart are new 40 mm Zircon sheaves it shares with its namesake Zircon blocks. These contribute 30% less ‘aero-disruption’ and clear the tiller more easily. As before, sailors may swap in any Harken Power 3 ratchet sheave to match weather conditions. They can also choose 10:1, 11:1, or 12:1 purchase and tune the cam cleat angle until it fits their sailing styles perfectly. With a new extended head post and the correct strop length, those sheaves can interlock for max mast rake.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"info sku\"\u003ePart No. 2801\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003eMaximum line Ø (mm)\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e8 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum line Ø (in)\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e5\/16 in\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum working load (kg)\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e545 kg\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum working load (lb)\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e1200 lb\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheave Ø (mm)\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheave Ø (in)\u003c\/td\u003e\n\u003ctd\u003e1 9\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (g)\u003c\/td\u003e\n\u003ctd\u003e888 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (oz)\u003c\/td\u003e\n\u003ctd\u003e31.3 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum line Ø (mm)\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum line Ø (in)\u003c\/td\u003e\n\u003ctd\u003e5\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum working load (kg)\u003c\/td\u003e\n\u003ctd\u003e545 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum working load (lb)\u003c\/td\u003e\n\u003ctd\u003e1200 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaking load (kg)\u003c\/td\u003e\n\u003ctd\u003e1636 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaking load (lb)\u003c\/td\u003e\n\u003ctd\u003e3600 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":46963634766133,"sku":"HAR-2801","price":1370.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_5ba7175e-418a-4738-ae0f-1e9bb36c67ff.jpg?v=1696599780"},{"product_id":"harken-57-mm-zircon-triple-block-becket","title":"Harken 57 mm Zircon Triple Block — Becket","description":"\u003cp\u003eThe Harken 57 mm Zircon Triple Block — Becket utilizes industrial ceramic ball bearings and caged races to optimize performance for seamless sail shape adjustments, making it an ideal choice for trimmers tackling shifting conditions. With options for single or double blocks, and a maximum working load of 450 kg (990 lb) and line thickness of 10 mm (3\/8 in), these blocks come with 40 or 57-mm sheaves to suit various needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492176630069,"sku":"HAR-1213","price":202.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_1e49e1bb-2d48-4546-9f15-098a60a698f1.webp?v=1737053099"},{"product_id":"harken-57-mm-zircon-triple-block","title":"Harken 57 mm Zircon Triple Block","description":"\u003cp\u003eThe Harken Zircon Triple Block, Part No. 2199, has a maximum working load of 990 lb (450 kg) and can accommodate a maximum line diameter of 10 mm. The block features industrial ceramic ball bearings mounted in caged races, ensuring maximum efficiency and performance. Available in 40 and 57 mm sizes with single or double sheaves, it also comes with an optional becket attachment. The sheave diameter is 2 1\/4 inches (57 mm), perfect for small boat operations.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492187410741,"sku":"HAR-2199","price":183.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_9a38200a-3afe-4029-87f5-524bb6ef974f.webp?v=1737053560"},{"product_id":"harken-40-mm-zircon-triple-block-becket","title":"Harken 40 mm Zircon Triple Block — Becket","description":"\u003cp\u003eHarken's 40 mm Zircon Triple Block - Becket (Part No. 1212) has a maximum working load of 345 kg (750 lb) and can accommodate lines up to 8 mm (5\/16 in) in diameter. Its 40 mm (1 9\/16 in) sheave is fitted with industrial ceramic ball bearings and caged races to ensure efficient and smooth operation. Zircon blocks are designed to help trimmers quickly adjust sail shapes to changing conditions, making them a valuable addition to any small boat's rigging. These high-performing blocks are available in various sizes and configurations, including single and double blocks, with or without beckets.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492216901941,"sku":"HAR-1212","price":150.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_1e49e1bb-2d48-4546-9f15-098a60a698f1_1.webp?v=1737054093"},{"product_id":"harken-40-mm-zircon-triple-block","title":"Harken 40 mm Zircon Triple Block","description":"\u003cp\u003eThe Harken 40 mm Zircon Triple Block, part number 2194, boasts a maximum working load of 345 kg (750 lbs), with a maximum line diameter of 8 mm (5\/16 in) and a sheave diameter of 40 mm (1 9\/16 in). Thanks to the use of industrial ceramic ball bearings mounted in caged races, Zircon blocks offer immediate and efficient sail shape adjustments to varying conditions. Available in both single and double blocks, with or without beckets, with sheave sizes of 40 and 57 mm, these blocks are the pinnacle of small boat performance and are a testament to Harken's expertise in the industry.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492226208053,"sku":"HAR-2194","price":136.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_9a38200a-3afe-4029-87f5-524bb6ef974f_1.webp?v=1737054321"},{"product_id":"harken-29-mm-zircon-triple-block-becket","title":"Harken 29 mm Zircon Triple Block — Becket","description":"\u003cp\u003eIntroducing the new and improved Harken 29 mm Zircon Triple Block — Becket (Part No. 1211), capable of handling a maximum working load of 240 kg (525 lb). With a maximum line diameter of 6 mm (1\/4 in) and a sheave diameter of 29 mm (1 1\/8 in), this block is a versatile option for control lines, providing an immediate response for quick adjustments and increased power in choppy waters. These six new models expand the previous offering of eight, bringing the total to eighteen, ensuring you can find the perfect block for your needs. Trust Zircon to handle even the most demanding multi-part purchases.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492250849589,"sku":"HAR-1211","price":98.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_1e49e1bb-2d48-4546-9f15-098a60a698f1_2.webp?v=1737054814"},{"product_id":"harken-29-mm-zircon-triple-block","title":"Harken 29 mm Zircon Triple Block","description":"\u003cp\u003eThe Harken 29 mm Zircon Triple Block, part number 2189, can handle a maximum working load of 240 kg (525 lb) and has a maximum line diameter of 6 mm (1\/4 in). With a sheave diameter of 29 mm (1 1\/8 in), the newest addition to the Zircon lineup features six models, expanding the total options from eight to eighteen. Zircon is not a universal solution - no block is - but these smaller sizes are suitable for control lines that require multiple purchases. Zircon reacts quickly, making it ideal for situations where immediate response is necessary, such as when easing the 24:1 Cunningham rigged under the deck or adjusting the jib lead for more power in choppy conditions.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492302917941,"sku":"HAR-2189","price":93.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_9a38200a-3afe-4029-87f5-524bb6ef974f_2.webp?v=1737055088"},{"product_id":"harken-29-mm-zircon-double-block-becket","title":"Harken 29 mm Zircon Double Block — Becket","description":"\u003cp\u003eHarken's Zircon Double Block with a 29 mm sheave diameter is now available in six new models, bringing the total offering to eighteen. With a maximum working load of 160 kg (350 lb) and maximum line diameter of 6 mm (1\/4 in), this block is perfect for control lines requiring multi-part purchases. Designed to react quickly, the Zircon is ideal for adjustments on the go, whether it's easing the 24:1 Cunningham or moving the jib lead for more power. Trust the expertise of Harken for all your sailing needs.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492334047541,"sku":"HAR-2188","price":72.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_41429b42-4cac-4922-8a04-a7036761c021.webp?v=1737055346"},{"product_id":"harken-29-mm-zircon-double-block","title":"Harken 29 mm Zircon Double Block","description":"\u003cp\u003eIntroducing the newest additions to the Harken Zircon family, the 29 mm Zircon Double Block, also known as Part No. 2187. These innovative blocks have a maximum working load of 160 kg (350 lb) and a maximum line diameter of 6 mm (1\/4 in). The Zircon line now offers a total of 18 models, including these six new ones with 29 mm sheave diameters. While no block can be considered all-purpose, these smaller sizes are perfect for control lines where multiple purchases are needed. With its immediate response, the Zircon is your go-to block when you need to ease pressure on that 24:1 Cunningham rigged under the deck or when you want to adjust the jib lead for more power through the chop.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492348694837,"sku":"HAR-2187","price":66.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_a39a6dee-4340-48d7-bf20-9512c5d8b3a7.webp?v=1737055524"},{"product_id":"harken-29-mm-zircon-block-becket","title":"Harken 29 mm Zircon Block — Becket","description":"\u003cp\u003eThe Harken 29 mm Zircon Block — Becket, Part No. 2186, can handle a maximum working load of 80 kg (175 lb). It is designed for use with lines up to 6 mm (1\/4 in) in diameter and has a sheave diameter of 29 mm (1 1\/8 in). With six new models added to the Zircon line, there are now eighteen options to choose from. While no block is suitable for all purposes, Zircon excels in control lines requiring a multi-part purchase system. Its quick responsiveness allows for easy adjustments, making it ideal for maneuvers such as releasing a Cunningham or adjusting the jib lead for added power in choppy conditions.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492371501365,"sku":"HAR-2186","price":40.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_e2878b14-fe58-4c0a-b911-70c4da6ecfd4.webp?v=1737055727"},{"product_id":"harken-29-mm-zircon-block","title":"Harken 29 mm Zircon Block","description":"\u003cp\u003eThe Harken 29 mm Zircon Block, part number 2185, has a maximum working load of 80 kg or 175 lbs. It also has a maximum line Ø of 6 mm or 1\/4 in and sheave Ø of 29 mm or 1 1\/8 in. The newest Zircon models, with 29 mm sheave diameters, expand the current offering from eight to eighteen models. While Zircon is not a universally applicable option, these smaller sizes make it suitable for control lines that require multi-part purchases. Additionally, Zircon is highly responsive to adjustments, allowing for immediate reaction when easing pressure on the Cunningham or jib leads for added power in choppy conditions.\u003c\/p\u003e\n\u003cdiv class=\"product-details-top\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50492377366837,"sku":"HAR-2185","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/files\/product_bcfb2cf2-3f9d-40b9-8d99-eafb7f718d61.webp?v=1737055905"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0392\/1461\/collections\/harken-40-mm-zircon-block-becket-446795.jpg?v=1740425429","url":"https:\/\/senditsailing.com\/collections\/product-harken-zircon-blocks.oembed","provider":"SendIt Sailing","version":"1.0","type":"link"}