Change the tires and perform standard maintenance on your vehicle at home with the help of the Black Bull Two Ton Trolley Floor Jack. The 15 inch wheel base features a 360 degree swivel saddle so you can get stable and safe contact with the load you?re lifting. Two rear 360 degree swivel ball bearing casters, and two front wheels make this Trolley Floor Jack easy to move from one wheel to the next, saving your back. The heavy gauge reinforced steel frame has a weight bearing capacity of 4,000 lbs. With a lifting height of 5 to 12 inches, the Black Bull Two Ton Trolley Floor Jack can stabilize or lift most cars, trucks, SUVs, trailers or RVs.