18" L Pvc Coated Stainless Steel Anchor Safety Strap By Lewmar. Safety Straps Will Prevent The Anchor From Deploying If The Anchor Is Unintentionally Released Or Powers Out Accidently. It Is Simply Clipped On The Chain, Shackle Or Anchor. They Do Not Secure (Hold Tight) The Anchor In The Bow Roller. Lewmar Recommends Securing The Anchor To The Boat When Not In Use. The Windlass Is Not Designed To Hold The Anchor To The Boat When Not In Use.