{"title":"Harken Mainsail Reefing \u0026 Lazy Jack Selection Guide","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/om-manual-v2.css\"\u003e\u003cstyle\u003e.mpom .om-tbl.nw td+td{white-space:nowrap}\u003c\/style\u003e\u003cdiv class=\"mpom\"\u003e\n\u003cdiv class=\"om-head\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"om-tag ss\"\u003eSELECTION GUIDE\u003c\/span\u003e\u003cp class=\"om-lead\"\u003eThe Harken blocks most commonly used for a dual-line mainsail reefing system, and the lazy-jack kit, by boat length.\u003c\/p\u003e\n\u003cdiv class=\"om-box\"\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eDocument\u003c\/span\u003e\u003cb\u003eHarken Mainsail Reefing \u0026amp; Lazy Jack Selection Guide\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eFormat\u003c\/span\u003e\u003cb\u003ePDF · 1 page · 1.4 MB\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\" style=\"border-bottom:0\"\u003e\n\u003cspan\u003eLanguage\u003c\/span\u003e\u003cb\u003eEnglish\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-acts\"\u003e\n\u003ca class=\"om-btn dl\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Harken-Mainsail-Reefing-Lazy-Jack-Selection-Guide.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 4v11\"\u003e\u003c\/path\u003e\u003cpath d=\"m7 10 5 5 5-5\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 20h14\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Download PDF\u003c\/a\u003e\u003ca class=\"om-btn buy\" href=\"\/collections\/harken-sailboat-mainsail-lazy-jacks\"\u003eView Collection\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-toc\"\u003e\n\u003ca href=\"#om-select\"\u003eSelection\u003c\/a\u003e\u003ca href=\"#om-layout\"\u003eLayout\u003c\/a\u003e\u003ca href=\"#om-products\"\u003eProducts\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-img\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2644.jpg?v=1747147748\" alt=\"Harken Mainsail Reefing \u0026amp; Lazy Jack Selection Guide\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-select\"\u003e\n\u003ch2 class=\"om-h\"\u003eDual-Line Reefing \u0026amp; Lazy Jacks\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eSmall boat\u003c\/th\u003e\n\u003cth\u003eMidrange\u003c\/th\u003e\n\u003cth\u003eBig boat\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBoat length\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e6.7 – 8.5 m\u003cbr\u003e\u003csmall\u003e22 – 28'\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd\u003e8.8 – 10.4 m\u003cbr\u003e\u003csmall\u003e29 – 34'\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd\u003e10.7 – 12.8 m\u003cbr\u003e\u003csmall\u003e35 – 42'\u003c\/small\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv style=\"height:16px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eRef.\u003c\/th\u003e\n\u003cth\u003eDual line\u003c\/th\u003e\n\u003cth\u003eSmall boat\u003c\/th\u003e\n\u003cth\u003eMidrange\u003c\/th\u003e\n\u003cth\u003eBig boat\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003eCheek\u003c\/td\u003e\n\u003ctd\u003e2644\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2644\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6106\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har6106\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e3220\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har3220\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003ctd\u003e2650\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2650\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e2600\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2600\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e3215\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har3215\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003ctd\u003eMastbase block\u003c\/td\u003e\n\u003ctd\u003e222\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har222\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1986\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har1986\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1988\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har1988\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003eBullseye\u003c\/td\u003e\n\u003ctd\u003e339\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har339\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e237\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har237\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e237\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har237\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eLazy jack kit\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e252\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har252\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e253\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har253\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e254\u003cbr\u003e\u003ca class=\"om-shop\" href=\"\/products\/har254\"\u003eView →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003ePart numbers are the hardware most commonly used, not the only option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block om-grid2\" id=\"om-layout\"\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eHow It Leads\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eA\u003c\/b\u003e cheek block on the boom end for the reef line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eB\u003c\/b\u003e single block under the boom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eC\u003c\/b\u003e mastbase blocks leading the lines aft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eD\u003c\/b\u003e bullseye at the luff.\u003c\/li\u003e\n\u003cli\u003eDual-line reefing is common on boats of 9 m (30') and larger. Position the blocks so the line pulls down and out, keeping the sail flat and taking lateral load off the luff rope or slides.\u003c\/li\u003e\n\u003cli\u003eLazy jacks contain the main while reefing and dousing; they work especially well with full-battened mains but suit conventional sails too.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eDiagram\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Harken-Mainsail-Dual-Line-Reefing-and-Lazy-Jacks.png\" alt=\"Harken dual-line reefing and lazy jack layout\" style=\"width:100%;height:auto;border:1px solid #e3e5e8;border-radius:6px;margin:0\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eNeed a part that isn't listed? \u003ca href=\"\/pages\/contact\"\u003eAsk us to source it\u003c\/a\u003e and quote the part number from the PDF.\u003c\/p\u003e\n\u003ch2 class=\"om-h\" id=\"om-products\"\u003eProducts in this Selection Guide\u003c\/h2\u003e\n\u003c\/div\u003e","products":[{"product_id":"har1986","title":"Harken Block - Fixed Mast Base Leads 44mm","description":"\u003cp\u003eLow-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.\u003c\/p\u003e\u003cp\u003e Our Part # HAR1986 | Mfr. Part # 1986\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016289980722,"sku":"HAR1986","price":90.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR1986.jpg?v=1747147727"},{"product_id":"har1988","title":"Harken Block - Fixed Mast Base Leads 57mm - Mast Base","description":"\u003cp\u003eThe Harken Block - Fixed Mast Base Leads 57mm - Mast Base #1988 is a fantastic addition for any sailor looking to maximize efficiency at the mastbase. It's designed to be compact and lightweight, making it easy to group together with other blocks without taking up too much space. You'll appreciate the precision and reliability this harken block offers.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow-profile design for minimal space usage\u003c\/li\u003e \u003cli\u003eLightweight construction for easy handling\u003c\/li\u003e \u003cli\u003eIdeal for grouping multiple blocks at the mastbase\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eConstructed with durability in mind, this block features a 57mm sheave, perfect for managing halyards and control lines efficiently. It's compatible with a variety of sailing setups, ensuring versatility across different mast configurations.\u003c\/p\u003e \u003cp\u003e Our Part # HAR1988 | Mfr. Part # 1988 \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016290079026,"sku":"HAR1988","price":241.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR1988.jpg?v=1747147728"},{"product_id":"har222","title":"Harken Block - Classic Big Bullet 38mm Single - Upright","description":"\u003cp\u003eThe Harken Block - Classic Big Bullet 38mm Single - Upright #222 is your go-to for effortlessly leading control lines aft. It's compact and lightweight, making trimming and releasing a breeze, whether under high or low loads. This versatile block adapts seamlessly to nearly any control line application.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow-friction design for smooth operation\u003c\/li\u003e \u003cli\u003eCompact and lightweight for easy handling\u003c\/li\u003e \u003cli\u003eFast trim and release under varying loads\u003c\/li\u003e \u003cli\u003eAdapts to various control line applications\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eConstructed with durable materials to withstand the rigors of sailing, the block features a 38mm sheave diameter to accommodate various line sizes. Its upright configuration ensures optimal performance and reliability, making it suitable for a wide range of sailing gear setups.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016294338866,"sku":"HAR222","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR222.jpg?v=1747147737"},{"product_id":"har237","title":"Harken Fairlead - Bullseye Composite - Inside Dia: 1 in (25.4 mm)","description":"\u003cp\u003eUse the 237 and 339 where there is little deflection in the line such as when routing a spinnaker pole foreguy aft along the cabin house.\u003c\/p\u003e\u003cp\u003e Our Part # HAR237 | Mfr. Part # 237\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016294469938,"sku":"HAR237","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR237.jpg?v=1747147740"},{"product_id":"har252","title":"Harken Lazy Jack Kit - Boat Size: 21.0 - 28.0 ft (6.4 - 8.5 m)","description":"\u003cp\u003eLazy Jacks contain mainsails while reefing and dousing. They work extremely well with full-batten mains, but can also be used with conventional sails.\u003c\/p\u003e\u003cp\u003e Our Part # HAR252 | Mfr. Part # 252\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016294830386,"sku":"HAR252","price":408.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR252.jpg?v=1747147740"},{"product_id":"har253","title":"Harken Lazy Jack Kit - Boat Size: 27.0 - 37.0 ft (8.2 - 11.3 m)","description":"\u003cp\u003eThe Harken Lazy Jacks #253 is perfect for keeping your mainsail tidy during reefing and dousing. It's designed to work seamlessly with full-batten mainsails and can adapt to conventional sails too. This system makes sail handling a breeze, offering you more control and ease on the water.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEfficient sail containment during reefing and dousing\u003c\/li\u003e \u003cli\u003eCompatible with both full-batten and conventional mainsails\u003c\/li\u003e \u003cli\u003eSimple installation and ease of use\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuilt with durable materials, these lazy jacks are designed to withstand harsh marine conditions. They offer easy installation and compatibility with a variety of sailing setups, making them a versatile addition to your sailing gear.\u003c\/p\u003e \u003cb\u003eUsage\u003c\/b\u003e \u003cp\u003eIdeal for sailors looking to manage their mainsails with less effort, especially useful during solo sailing or when short-handed.\u003c\/p\u003e \u003cp\u003e Our Part # HAR253 | Mfr. Part # 253 \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016294863154,"sku":"HAR253","price":520.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR253.jpg?v=1747147741"},{"product_id":"har254","title":"Harken Lazy Jack Kit - Boat Size: 35.0 - 42.0 ft (10.6 - 12.8 m)","description":"\u003cp\u003eThe Harken Lazy Jacks #254 are a practical solution for managing your mainsail while reefing and dousing. They are especially effective with full-batten mainsails, but versatile enough to work with conventional sails too. Think of them as your helpful sailing companion when you're out on the water.\u003c\/p\u003e \u003cp\u003e\u003cb\u003e Benefits\u003c\/b\u003e \u003c\/p\u003e\u003cul\u003e \u003cli\u003eEfficiently contain mainsails during reefing and dousing\u003c\/li\u003e \u003cli\u003eCompatible with both full-batten and conventional sails\u003c\/li\u003e \u003cli\u003eSimple and reliable sail management system\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThese lazy jacks are designed to streamline your sailing experience, crafted from high-quality materials that ensure durability and performance. Perfect for sailors looking to maintain better control and organization of their sails, their robust construction is made to withstand the rigors of marine use. Easy to install and adjust, they offer a straightforward approach to sail handling.\u003c\/p\u003e \u003cp\u003e Our Part # HAR254 | Mfr. Part # 254 \u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016294895922,"sku":"HAR254","price":800.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR254.jpg?v=1747147741"},{"product_id":"har2600","title":"Harken Block - Carbo 57mm Single - Swivel","description":"\u003cp\u003eThe Carbo 57mm Single - Swivel #2600 is a strong block that's perfect for sailors who need reliable and lightweight hardware. It's part of the Carbo Air blocks range, known for their durability and efficient performance. This block is designed to make trimming easy and safe without adding unnecessary weight to your vessel.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLightweight and durable construction\u003c\/li\u003e \u003cli\u003eHigh working loads for safety\u003c\/li\u003e \u003cli\u003eLow-friction design for easy trimming\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eConstructed from strong, lightweight materials, this block features a 57mm sheave designed to handle high loads. It's compatible with a wide range of sailing gear, ensuring versatility on different types of boats. Ideal for use in situations where both weight and performance are critical, it measures compactly to fit snugly into your setup without compromising on strength.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eUsage\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003ePerfect for both racing and cruising, use this block for applications where smooth line handling and longevity are essential.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016294961458,"sku":"HAR2600","price":55.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2600.jpg?v=1747147741"},{"product_id":"har2644","title":"Harken Block - Carbo 40mm Single - Cheek","description":"\u003cp\u003eThe Carbo 40mm Single - Cheek #2644 is a strong block that's all about lightweight performance and reliability, perfect for smooth sailing adventures. It's one of those handy tools that keeps everything running efficiently without breaking the bank. You'll find it easy to manage under high loads, making your time on the water a breeze.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLightweight design for easy handling\u003c\/li\u003e \u003cli\u003eHigh working load capacity for safety\u003c\/li\u003e \u003cli\u003eCompact size for efficient space usage\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eMade from durable materials, this block measures 40mm, ensuring it's both compact and robust, ideal for various sailing setups. It's compatible with a wide range of sailing gear, ensuring versatility and adaptability on your vessel.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eUsage\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003ePerfect for trimming and applications where a low-friction, strong block is needed, it's a solid choice for both novice and experienced sailors alike.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016296468786,"sku":"HAR2644","price":36.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2644.jpg?v=1747147748"},{"product_id":"har2650","title":"Harken Block - Carbo 40mm Single - Fixed Head","description":"\u003cp\u003eThe Carbo 40mm Single - Fixed Head #2650 is a nifty little companion for sailing enthusiasts. It's lightweight and reliable, making your trimming experience smooth and safe without breaking the bank. Built with Harken’s quality assurance, it's perfect for those looking for dependable performance on the water.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLightweight and compact design\u003c\/li\u003e \u003cli\u003eHigh working load capacity\u003c\/li\u003e \u003cli\u003eLow-friction performance\u003c\/li\u003e \u003cli\u003eCost-effective without compromising quality\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eCrafted from durable materials, this harken block boasts a 40mm sheave diameter. It’s designed for optimal strength-to-weight ratio, ideal for small to medium-sized sailing vessels. Compatible with numerous rigging setups, it ensures flexibility and ease in handling.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016296698162,"sku":"HAR2650","price":31.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2650.jpg?v=1747147747"},{"product_id":"har3215","title":"Harken Block - Black Magic 57mm Single - Swivel","description":"\u003cp\u003eThe Black Magic 57mm Single - Swivel #3215 is a lightweight block that performance racers and cruisers love. It’s perfect for managing high-action sail controls with ease, thanks to its free-running design. This block offers reliable performance without the hassle of twisted lines.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLightweight and free-running for efficient sailing\u003c\/li\u003e \u003cli\u003eCenter cage with Torlon roller bearings reduces friction\u003c\/li\u003e \u003cli\u003eSwivel and locking capabilities for versatile use\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eCrafted with Torlon roller bearings and a unique center cage, this block ensures reduced friction and smoother operation. The block measures 57mm and is compatible with mainsheet, runner, halyard, and spinnaker systems. A trusted choice for those serious about sailing performance.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eUsage\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eIdeal for high-action sail controls, this block excels in mainsheet, runner, halyard, and spinnaker systems, offering seamless performance on big boats.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016305152306,"sku":"HAR3215","price":234.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR3215.jpg?v=1747147773"},{"product_id":"har3220","title":"Harken Block - Black Magic 57mm Single - Footblock (High-Load)","description":"\u003cp\u003eThe Harken Block - Black Magic 57mm Single - Footblock (High-Load) #3220 is a must-have for any sailor looking to efficiently redirect lines on deck. Known for its durability and ease of use, this footblock keeps your sailing experience smooth and hassle-free. With a friendly and approachable design, it fits seamlessly into any sailing setup.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHard Lube-anodized sideplates and sheaves for superior UV protection.\u003c\/li\u003e \u003cli\u003eCenter cage with Torlon roller bearings reduces friction.\u003c\/li\u003e \u003cli\u003eCompatible with both metric and imperial flathead fasteners.\u003c\/li\u003e \u003cli\u003eFasteners are concealed for a sleek look.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eCrafted from high-quality materials, this footblock features Hard Lube-anodized sideplates and sheaves to ensure maximum UV protection and a smooth surface. Its advanced design incorporates Torlon roller bearings, which are neatly separated and aligned to minimize friction. This versatile footblock supports both metric and imperial mounting systems, making it adaptable to various setups.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eUsage\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eIdeal for temporarily securing sheets, this footblock excels in redirecting lines efficiently on deck, providing sailors with reliable performance during high-load situations.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016305185074,"sku":"HAR3220","price":235.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR3220.jpg?v=1747147774"},{"product_id":"har339","title":"Harken Fairlead - Bullseye Composite Micro - Inside Dia: 1\/4 in (6 mm)","description":"\u003cp\u003eUse the 237 and 339 where there is little deflection in the line such as when routing a spinnaker pole foreguy aft along the cabin house.\u003c\/p\u003e\u003cp\u003e Our Part # HAR339 | Mfr. Part # 339\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016308887858,"sku":"HAR339","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR339.jpg?v=1747147786"},{"product_id":"har6106","title":"Harken Block - Cruising ESP Aluminum 40mm Single - Teardrop Footblock","description":"\u003cp\u003eThe Cruising ESP Aluminum 40mm Single - Teardrop Footblock #6106 is a straightforward and reliable choice for sailors who value simplicity and durability. It's designed to handle high static loads with its sleeve bearings, making it perfect for halyards on cruising boats. You'll appreciate how it combines functionality with a clean, classic look.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSleeve bearings for high static load management\u003c\/li\u003e \u003cli\u003eIdeal for halyards and limited purchase systems\u003c\/li\u003e \u003cli\u003eSimple and robust construction\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eMade from durable aluminum, this block is crafted to withstand the demands of cruising. Its 40mm sheave is designed to manage tough tasks efficiently. Perfectly suited for various sailing setups, it ensures smooth operation and longevity.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016329793842,"sku":"HAR6106","price":70.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR6106.jpg?v=1747147851"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/collections\/HAR2644_a1d49923-19b6-4f6b-82f8-69f29abec983.jpg?v=1791298174","url":"https:\/\/www.mauripro.com\/collections\/selection-guides-harken-mainsail-reefing-selection.oembed","provider":"MAURIPRO Sailing","version":"1.0","type":"link"}