Primary Wheel Chock Application Mine Support Equipment Width 14 1/2 in Height 16 in Depth 24 5/8 in Urethane Wheel Chock Surface Tread Grooved Wheel Chock Style Single Max Vehicle Weight 400 000 lb Wheel Chock Yellow Standards MSHA OSHA Includes Rubber Pads Max Tire Diameter 165 in Wheel Chock Base Tread Smooth