{"product_id":"harken-57mm-aluminum-low-load-black-magic-block-w-swivel","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:m2lqnZto ---\u003e\u003cbr\u003e\u003cstrong\u003eManufacturer Part Number: \u003c\/strong\u003e3226\u003cbr\u003e\u003ctable id=\"lit-container\"\u003e\u003c\/table\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":41803338973259,"sku":"93959-cwr","price":374.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1824\/0789\/files\/Harken-57mm-Aluminum-Low-Load-Black-Magic-Block-wSwivel.jpg?v=1762213357","url":"https:\/\/www.tecisoft.ca\/products\/harken-57mm-aluminum-low-load-black-magic-block-w-swivel","provider":"TeciSoft","version":"1.0","type":"link"}