This automatic anti-static device solves the electrical shock by a car door. Each time you approach your car door handle with your keychain, the builtin magnet in the Anti Static Device makes contact with the car door metal & discharges the electro-static charge on your body through itself without you even noticing it. So that's one problem that you need not worry about now. Can use as a key ring.
Size: 30mm long
Color: Yellow, Blue, White, Red