Poly 2" Trailer Glyde Slicks 6-Pack Part #: P05-06W Launch & load your boat with ease Eliminates friction between the bottom of the boat & the runners Easily installed on carpeted or bare bunks Evenly distribute the weight of the boat For all boats: aluminum, fiberglass & wood Includes stainless steel screws & instructions Dimensions: 2"L x 1-1/2"W - 7/16"Thick