special 3D sleeve shape for increased wearing comfort and mobility

Perfect for multi purchase vang systems on performance dinghies such as the Moth

An extra EVA medial posting enhances your support and stability

Core: Dyneema® SK78

Ronstan Series 100 Core Block™, Single RF104100 womens special 3D sleeve shape forSingle, universal head FEATURES High dynamic and static load capacity. High load bearing system. Ball bearings to counteract side thrust loads. Class leading performance and sleek, contemporary styling. Durable aluminium alloy cheek plates. Central hub hole can be used as a becket take off or tie up point. Also available in Series 45, 60 & 75Univers Al head with full 3 axis articulation. Head posts can be locked at 0 or 90 degrees, by using a 2. 5mm