Genie Universal Perfect Stop Garage Parking Aid

If you have trouble judging where to stop in your garage to allow clearance for the door, the Perfect Stop Parking System is the solution to your worries. No more getting in and out of your car to see how much more space you have! With the easy-to-install system, just drive forward in your garage until the yellow ball touches the windshield, and you'll know you're parked at the same distance every time you enter your garage. The Perfect Stop sensor ball lowers into place when the garage door opens and retracts out of the way when the door closes.