Can be used both front and back of the tire simultaneously.
If you hang the hook on the door, you can prevent forgetting to remove the stopper.
For wheel chocking when parked.
Size: Width 4.3 x Length 7.9 x Height 4.7 inches (110 x 200 x 12
Material: Synthetic rubber
Weight: 7.6 lbs (3.62 kg).