Rated for tire sizes up to 65 in.
1 cm) diameter and gross vehicle operating weight up to 245, 000 lbs. The Checkers™ heavy-duty MC3009 wheel chocks for ground vehicles are manufactured with highly durable, lightweight polyurethane and they feature a larger base that makes them ideal for use with heavy equipment. Justrite Replacement Rubber Pad for MC3012 Wheel Chocks, MCPAD20.(165.