{"product_id":"isc-medium-blue-spring-block","title":"ISC Medium Blue Spring Block","description":"\u003cp\u003eA medium spring block from ISC, perfect for the working arborist. The upper sheave and pin are captured by the spring locking mechanism, eliminating the chance of dropping a sheave. The rope-friendly side plates are thick hot-forged aluminum with blue anodizing for a long-lasting finish.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRP055A: 3\/4\" rope capacity\u003c\/li\u003e\n\u003cli\u003eRP054A: 5\/8\" rope capacity\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISC","offers":[{"title":"3\/4\" (RP055A)","offer_id":67641723191428,"sku":"12372","price":324.99,"currency_code":"USD","in_stock":true},{"title":"5\/8\" (RP054A)","offer_id":67641723224196,"sku":"12374","price":294.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/4998\/6436\/files\/12372_01.jpg?v=1791618073","url":"https:\/\/heavydutytreesupply.com\/products\/isc-medium-blue-spring-block","provider":"Heavy Duty Tree Supply","version":"1.0","type":"link"}