Primary Wheel Chock Application Semi-Trailers and Trucks, Width 9 in, Height 8 1/2 in, Depth 11 1/2 in, Urethane, Wheel Chock Surface Tread Grooved, Wheel Chock Style Single, Max. Vehicle Weight 60, 000 lb, Wheel Chock, Orange, Max. Tire Diameter 46 in, Wheel Chock Base Tread Smooth. This item has been restricted from sale in the following state (s): []