{"product_id":"harken-57mm-hl-double-footblock","title":"Harken 57mm HL Double Footblock","description":"57 mm Aluminum Double Footblock \u0026lt;br\u0026gt; The entire line of Black Magic AirBlocks has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.Carrying some of the highest loads imposed by running rigging, these strong, lightweight blocks feature Torlon roller bearings housed in a center cage. Rollers stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Blocks are easily disassembled with a single hex wrench.Either metric or imperial flathead fasteners may be used for mounting and are not exposed.","brand":"Harken","offers":[{"title":"Default Title","offer_id":47571217416421,"sku":"Harken-3222","price":507.36,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/6495\/0501\/files\/3222.jpg?v=1755693469","url":"https:\/\/www.stevestonmarine.com\/products\/harken-57mm-hl-double-footblock","provider":"Steveston Marine and Hardware","version":"1.0","type":"link"}