The Optiparts Optimist Halyard System with Low Friction Ring is a high-performance halyard rigging solution designed specifically for Optimist dinghies. This is a Optimist Halyard system with Win design low friction ring. This halyard system is used on all Optimist Black gold masts from 2017. The combination of Harken hook-in block, Dyneema spliced halyard line and Windesign low friction ring creates the most advanced halyard system on the market.FeaturesOptimized for Performance RiggingDesigned for Optimist DinghiesEasy to Install & Maintain