Holds your anchor securely on an anchor roller to prevent rattling of the chain/anchor Solid stainless steel Locks into place but can be quickly and easily released Description This anchor tensioner will hold your anchor securely on a bow roller or pulpit, even in rough seas. It prevents rattling of your anchor and chain by keeping them in place under tension. Constructed of solid stainless steel. Measures 4.5"L x 1.5"W.