Daystars W in. Isolators provide a clean and easy way to store the w in. hook when not in use. Installed over the w in. cable, the W in. Isolators nest with a roller or hawse fairlead and provide a convenient rest for the w in. hook that also prevents it from rattling. They do not affect w in. operation and are constructed of a durable polyurethane material. Installation is a snap: simply remove the w in. hook, slide the cable through the w in. isolator, and re-attach the hook...its that simple!