Ding Bats FOLD OPEN/FOLD CLOSED magnetic car door guards (SET OF 4 INCLUDED) can be stored compactly and instantly attached to your car's doors when you park at a shopping center or parking garage OR left on your vehicle indefinitely to always be available to shield your car's doors from damage. NEVER AGAIN feel the need to park far away in Siberia because some idiot may swing his door open and dent your doors. NEVER worry about the cars next to you carelessly scratching or dinging your car's doors again. SAVE hundreds of dollars on costly repairs and keep the sides of your car looking new with this simple and easy solution. Ding Bats are hinged in the center (resembling a bat) to stow away compactly in your trunk when not in use. They attach with strong hidden magnets (under a layer of protective and soft cloth - never making contact with your vehicle's paint -to prevent scratches) and are EASILY POSITIONABLE on any area of your car's steel doors. PLEASE NOTE THAT DING BATS WILL NOT WORK ON VEHICLES WITH ALUMINUM DOORS! WE RECOMMEND TESTING YOUR DOORS IF YOU ARE NOT SURE IF YOUR DOORS ARE STEEL OR ALUMINUM. PLEASE FOLLOW THE BELOW DIRECTIONS... To confirm your doors will be compatible with Ding Bats simply test any magnet on your door. If the magnet is attracted to your door Ding Bats will work fine.