These dollies allow you to lift the wheels off the ground and move cars around, whether they run, or roll or not. Each of these hydraulic wheel dollies can lift up to 1300lbs, and work with tires up to 12 inches wide. Heavy duty ball bearing casters allow cars to be easily maneuvered around most paved and concrete surfaces. Hydraulic powered tire grab/lift action and foot pedal makes using these dollies a breeze. Set of 4 with storage rack.