Primary Wheel Chock Application General Purpose Width 8 in Height 5 in Depth 12 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 5 ft Chain Max Tire Diameter 55 in Wheel Chock Base Tread Grooved 1 Pair