1Practical Tool: The wheel chock is a revolutionary tool that prevents your hose and cords from getting caught underneath your tires during a detail repairing. 2Rugged Material: The tire inserts are made of heavy duty material, these strong tools may very well be the most handy detailing tool you're ever used. 3Unique Design: The tire stopper has a unique design of a roller system that helps your hose or cord move along the guard and prevents any unnecessary friction, as well as a lip on top and below the rollers that keep the hose contained. 4Perfect Protection: On top of the rollers is a cone shaped lip that keeps your hose or cord on track. This prevents the hose from accidental paint contact from flailing with a sharp movement. 5Wide Application: The car tire chock stopper block is suitable for any wheels, being convenient for cae washing or position the vehicle.