{"product_id":"harken-57mm-hl-runner-block","title":"Harken 57mm HL Runner Block","description":"57 mm Runner Block \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.Black Magic Air Runners are strong, lightweight blocks with extremely free-rolling sheaves. Blocks feature Torlon roller bearings in a center cage for strength.Heads are offered with parallel\/perpendicular shackles. Tangs attach turnbuckles, toggles, and other fittings. No tools required for installation.","brand":"Harken","offers":[{"title":"Default Title","offer_id":47571217481957,"sku":"Harken-3224","price":498.81,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/6495\/0501\/files\/3224.jpg?v=1755693471","url":"https:\/\/www.stevestonmarine.com\/products\/harken-57mm-hl-runner-block","provider":"Steveston Marine and Hardware","version":"1.0","type":"link"}