{"product_id":"optiparts-57mm-black-ratchet-mainsheet-block","title":"Optiparts 57mm Black Ratchet Mainsheet Block","description":"\u003cp\u003e\u003cstrong\u003eOptiparts 57mm Black Ratchet Mainsheet Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Windesign 57 mm Ratchet Mainsheet Block is a high-performance ball bearing ratchet block developed for Optimist, ILCA, Laser, and other dinghies. The precision ratchet mechanism provides additional grip on the mainsheet, reducing sheet loads while maintaining smooth and controlled trimming, particularly in stronger winds.\u003c\/p\u003e\n\u003cp\u003eEquipped with an easy-to-operate on\/off switch, this versatile ratchet block combines excellent performance with outstanding value, making it a popular choice for both club and competitive sailors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Windesign 57 mm ratchet block\u003c\/li\u003e\n\u003cli\u003eBall bearing construction\u003c\/li\u003e\n\u003cli\u003eSwitchable ratchet mechanism\u003c\/li\u003e\n\u003cli\u003eSmooth, low-friction operation\u003c\/li\u003e\n\u003cli\u003eExcellent value for money\u003c\/li\u003e\n\u003cli\u003eSuitable for Optimist, ILCA, Laser and other dinghies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave diameter: 57 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line diameter: 10 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optiparts","offers":[{"title":"Default Title","offer_id":53915981611380,"sku":"OPTEX1299","price":78.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/EX1299.jpg?v=1786524844","url":"https:\/\/velasailingsupply.com\/products\/optiparts-57mm-black-ratchet-mainsheet-block","provider":"Vela Sailing Supply","version":"1.0","type":"link"}