Patriot Docks Sizeingle Dock Wheel with 2 washers and 1 clamp

Heavy duty plastic material for rolling over tough terrain Tall profile: 24 inch diameter Wide profile: 7-1/2" tread with 8" hub Hole for draining and filling water - they sink in the water, and drain when rolled out of the water Adapts to our Jack Axle or a 1-1/2" schedule 40 galvanized pipe with Pipe Axle Brackets Wide range of applications: boat lifts, boat docks, wheel barrows, carts, and more!