{"product_id":"lewmar-50mm-fiddle-block-black-1-4-3-8-line-239-29925031bk","title":"Lewmar 50mm Synchro Fiddle Block – Black, 1\/4”–3\/8” Line","description":"\u003ch2\u003eSmooth, Efficient Multi-Part Line Handling\u003c\/h2\u003e\u003cp\u003eThe Lewmar 50mm Synchro Fiddle Block delivers the clean, low-friction performance of the Synchro series in a versatile fiddle configuration. Two sheaves in a staggered arrangement allow you to run two lines through a single block — ideal for multi-part purchase systems and anywhere you need to keep your rigging compact and efficient. The high-density, free-spin plain bearing and self-aligning swivel head minimize friction under load, while the patented shackle post lock makes attachment fast and tool-free.\u003c\/p\u003e\u003cp\u003eStainless steel straps and glass-fibre reinforced cheeks keep the block light and durable through seasons of hard use.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMulti-part mainsheet and vang purchase systems\u003c\/li\u003e\n\u003cli\u003eGenoa and jib sheet systems requiring two-line leads\u003c\/li\u003e\n\u003cli\u003eRunning rigging on performance dinghies and keelboats\u003c\/li\u003e\n\u003cli\u003eControl line systems where a compact two-sheave block is needed\u003c\/li\u003e\n\u003cli\u003eLine sizes: 1\/4” to 3\/8” (6–8mm)\u003c\/li\u003e\n\u003cli\u003eBlock size: 50mm sheave diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfiguration: Fiddle (double sheave, staggered)\u003c\/li\u003e\n\u003cli\u003eSheave diameter: 50mm\u003c\/li\u003e\n\u003cli\u003eLine range: 1\/4”–3\/8” (6–8mm)\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eBearing: High-density free-spin plain bearing\u003c\/li\u003e\n\u003cli\u003eHead: Self-aligning swivel\u003c\/li\u003e\n\u003cli\u003eConstruction: Stainless steel straps, glass-fibre reinforced cheeks\u003c\/li\u003e\n\u003cli\u003eAttachment: Patented shackle post lock\u003c\/li\u003e\n\u003cli\u003eSKU: 239-29925031BK\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e The plain fiddle block is the right choice when you need a two-sheave block without the added weight or complexity of a cam or becket — use it as the working end of a purchase system or anywhere you need to run two lines through one point. It’s a clean, lightweight option for dinghies and small keelboats in the 16–26 ft range. If you need a lock-off, step up to the \u003ca href=\"\/products\/lewmar-50mm-synchro-block-fiddle-w-cam-black-1-4-3-8-line-239-29925037\"\u003eFiddle with Cam\u003c\/a\u003e; for a complete purchase system anchor, choose the \u003ca href=\"\/products\/lewmar-50mm-synchro-block-fiddle-w-becket-black-1-4-3-8-line-239-29925034\"\u003eFiddle with Becket\u003c\/a\u003e or \u003ca href=\"\/products\/lewmar-50mm-fiddle-block-w-cam-becket-black-1-4-3-8-line-239-29925039bk\"\u003eFiddle with Cam \u0026amp; Becket\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eOther 50mm Synchro Blocks\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-single-black-1-4-3-8-line-239-29925001bk\"\u003e50mm Synchro Block – Single, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-synchro-block-double-black-1-4-3-8-line-239-29925002bk\"\u003e50mm Synchro Block – Double, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-synchro-block-triple-black-1-4-3-8-line-239-29925003\"\u003e50mm Synchro Block – Triple, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-double-block-becket-black-29925005bk\"\u003e50mm Synchro Block – Double with Becket, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-single-w-becket-cam-black-1-4-3-8-line-239-29925009\"\u003e50mm Synchro Block – Single with Becket \u0026amp; Cam, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-triple-w-becket-cam-black-1-4-3-8-line-239-29925010\"\u003e50mm Synchro Block – Triple with Becket \u0026amp; Cam, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-halyard-black-1-4-3-8-line-239-29925021\"\u003e50mm Synchro Halyard Block, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-fiddle-w-becket-black-1-4-3-8-line-239-29925034\"\u003e50mm Synchro Block – Fiddle with Becket, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-block-fiddle-w-cam-black-1-4-3-8-line-239-29925037\"\u003e50mm Synchro Block – Fiddle with Cam, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-fiddle-block-w-cam-becket-black-1-4-3-8-line-239-29925039bk\"\u003e50mm Synchro Fiddle Block – Cam \u0026amp; Becket, Black\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOther Synchro Block Sizes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-block-single-black-5-16-3-8-line-239-29926001bk\"\u003e60mm Synchro Blocks – 5\/16”–3\/8” Line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-synchro-block-single-black-3-8-1-2-line-239-29927201\"\u003e72mm Synchro Blocks – 3\/8”–1\/2” Line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-90mm-synchro-block-single-w-becket-black-1-2-9-16-line-239-29929004\"\u003e90mm Synchro Blocks – 1\/2”–9\/16” Line\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePair It With\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/products\/lewmar-synchro-snap-shackle-239-29925040\"\u003eLewmar Synchro Snap Shackle – 50mm\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250740002852,"sku":"239-29925031BK","price":86.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/64bc5a7a-3133-463b-a98a-5de5fb943436.png?v=1787026517","url":"https:\/\/marisolmarine.com\/products\/lewmar-50mm-fiddle-block-black-1-4-3-8-line-239-29925031bk","provider":"Marisol Marine Company","version":"1.0","type":"link"}