Primary Wheel Chock Application General Purpose, Width 8 in, Height 5 in, Depth 8 in, Rubber, Wheel Chock Surface Tread Grooved, Wheel Chock Style Double with Rope or Chain, Max. Vehicle Weight 10,000 lb, Wheel Chock, Black, Standards OSHA 1910.178k, Includes Chain, Max. Tire Diameter 55 in, Wheel Chock Base Tread Grooved, 1 Pair