8" Gray Railing Comfort Grip 3 Pack Fits 1" To 4" Diameter Railings. Includes three grips to fit just about any application. By adding a comfortable ergonomic grip with finger grooves to additional rail supports around your boat will not only save your hands but the hands of your guests as well. These grips are great to attach to: Boarding Handles, Hand Rails, Grab Rails, Swim Ladders, Bow Rails, Tiller Steering, T-Tops, Tools, and much more!