Aluminum wheel chocks keep front or rear tires secure when traveling. Completely box-welded for added strength! Features a handle for easy carrying. Hard rubber wheel chocks to keep tires secure when parked on a flat surface. These chocks are suitable for sports cars with low clearance as well as heavy duty vehicles, and they have a saw-tooth bottom for extra-strong grip. They are manufactured for lightweight strength with hollowed 100% recycled rubber and only weigh 1.5 pounds for chock for easy positioning. They won't slip, even when wet, and can be used on any floor type. Use on a flat, level surface. Ensure that the bottom of each chock makes full contact with solid ground.