Primary Wheel Chock Application Mine Support Equipment Width 15 1/8 in Height 11 in Depth 15 in Urethane Wheel Chock Surface Tread Grooved Wheel Chock Style Single Max Vehicle Weight 240 000 lb Wheel Chock Yellow Standards MSHA OSHA Includes Rubber Pads Max Tire Diameter 65 in Wheel Chock Base Tread Smooth