Shop Nilight Wheel Chocks, Heavy Duty Wheel Stopper for Car, Truck, RV, Trailer, Caravan, Motorcycle, 8.7inch x 4.8inch x 4.2inch, 2-Pack in high quality, support 2 year warranty. Constructed of tough high-density polyethylene plastic for long-lasting use, Nilight wheel chocks are designed to prevent accidental vehicle movement when placed against the wheels