Durable material-----auto wedge use high quality solid material, please note that it is solid feeling, just like ABS material, but not easy to crack and durable for use long term.applicable for car trailer, truck or other vehicles wheel tire. for wheel chock. for car chock slope. Powerful function---truck wheel chockThe sturdy construction keeps the vehicle stable and durable. The non-slip rubber bottom optimizes grip when the vehicle is parked on the hold. The compact size allows for convenient placement in your car without taking up too much space. Lightweight for easy grip on the ground, prevents tires from rolling. Multi-function -----these car wheel chocks can be used for a wide range of purposes, perfect for choking cars, trucks, trailers, campers, dumpsters, boats, horse trailers, and more to keep your vehicle from rolling. Easy to use------ Rubber Wheel Chocks features a built-in handle for easy placement or positioning and a rubber traction pad with oil-resistant surface to prevent slipping, lightweight yet durable enough to keep almost any vehicle or trailer in place. place. Anti-slip design----- the heavy-duty black wheel chock features slight anti-slip lines on the outer surface to improve friction. There are strong rubber traction pads at the bottom of the wheel chock to help prevent the level from slipping when backing up. it can keep your vehicle or trailer secure at all times.