The "Wave" shape is 1/4"x 5"wide. This profile is a heavy-duty PVC strip that is designed to completely cover the sides of your dock. Form this flexible extrusion into a "wave" or loop shape and nail it down. By doing so, you create a bumper grid with superior shock absorbing and protective ability. The "Wave" is available in a 25 ft. coil and comes complete with mounting nails.