Place a vehicle dolly under each tire and move your car, truck, trailer and other heavy vehicles with ease. V-shape design prevents roll off. Heavy-duty, 1/4"-thick steel has a lasting powder-coat finish. Each standard dolly is rated to hold 1,500 lb. (6,000 lb. total). Item # 171604 has a total rating of 10,000 lb. Choose from three sizes to match varying tire widths. Polyurethane casters won’t mark your floor. Pkg. of 4.