Roadblock UC1500-4.5 Impact-Absorbing Urethane Industrial Wheel Chock, Orange, 4.5 lbs, 11" Length x 7.75" Width x 8" Height Wheel chock can be placed against the wheel of a parked truck or trailer to help hold it steady Made of polyurethane, which resists impacts, wear, and water; orange for visibility Curved surface allows chock to be placed flush to wheel Recessed handle on back can be used for carrying Weighs 4.5 lb.; measures 11 x 7.75 x 8 inches (L x W x H)