Docking a PWC has never been safer with the introductio of the Hull Hugr Contour PWC Fender.Engineered specifically for PWC's, it hinges in the center to better protect PWC's body from docks designed for bigger boats. It hooks under the rub rail with a molded acetyl hook integrated into the back of the fender. If not, simply thread the strap though the rubber block provided and place it inside the pwc's storage compartment, then shut it. The block holds the strap perfectly and will not damage the body. We recommend 2 fenders per PWC.