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' coil and comes complete with mounting nails. 25' coil will protect approximately 18' of dock space.