Cal-June 16 Dock Wheel Bumper w Corner Bracket All Cal-June Dock Wheel Bumpers provide a substantial cushion in the most troublesome tides, currents or fresh breezes. Finest heavy-duty vinyl wall construction with galvanized or steel hardware throughout and large sizes feature a 2 diameter axle housing to assure maximum strength under severe conditions. Heavy duty white vinyl bumper Hot dipped galvanized base Galvanized steel hardware 2Diameter axle housing Dimensions 16 x 16 Weight 22 lbs. Cali