OTC Tools 1572 Car Dollies with 3,600 lbs Capacity - 1 Pair Innovative patent-pending design clamps directly to pinch welds to prevent slippage during use Each unit has a capacity of 1800 pounds or 3600 lbs per pair with a low height of 9 inch and a high of 14 inch Independent units eliminate the need to adjust dolly width for different vehicle designs Each unit has an independently adjustable threaded lift saddle with rubber pads to protect the vehicle frame Universal design for use on all vehicle types without additional adapters