This profile is a heavy-duty PVC strip designed to completely cover the sides of your dock for ultimate protection. Simply form a wave” or loop shape with this flexible extrusion and nail it down. By doing so, you create a bumper grid with superior shock-absorbing and protective ability. After installation, one 25' length protects approximately 18' of dock. Measures 5"H x 1/4"W x 25'L. Material: Vinyl Attachment Method: Screw Mount Cross Section Shape: Molded Arch Shock Absorption Method: Air Cushion Warranty: One Year