Wichard Small Anchor Swivel 1/4" - 5/16" [2975W]Small Anchor Swivel 1 4" 5 16" Wichard anchor swivels are designed to simplify anchoring operations, especially when hoisting the anchor. Their unique design ensures that the anchor automatically aligns itself correctly in the bow roller, even if it comes up in the wrong orientation. The Small Anchor Swivel suits 1 4" and 5 16" (6mm and 8mm) anchor chains. Features: Anchor chains from 6 to 8 mm Self aligning to the bow roller Optimized dimensions