Primary Wheel Chock Application Fire Trucks, Width 6 1/2 in, Height 6 in, Depth 11 3/4 in, Aluminum, Wheel Chock Surface Tread Smooth, Wheel Chock Style Single, Max. Vehicle Weight 10, 000 lb, Wheel Chock, Gray, Standards NFPA/SAE, Max. Tire Diameter 32 in, Wheel Chock Base Tread Grooved. This item has been restricted from sale in the following state (s): []