"Designed for tires up to 12"" W, this four-pack of Black Widow Steel Hydraulic Wheel Dollies helps to maneuver vehicles, ATVs and UTVs around garages, body shops, showrooms, parking garages and other level-surfaced area where space might be limited. Constructed of reinforced steel, each jack dolly has a black powder-coat finish and operates hydraulically using a foot pedal. Sold as a pack of four, each dolly supports up to 1,500 pounds per wheel. A minimum of two dollies are required to move a vehicle by non-braking wheels."