Genie 37336R Universal Perfect Stop Garage Parking Aid

Universal–works for all garages; Ideal for judging stopping distance in garage to allow clearance for garage door behind the vehicle; Sensor ball lowers into place when the garage door opens & retracts out of the way when door closes; System mounts from ceiling & through top of door ; Foam parking aid is gentle on windshield & will not scratch or dent vehicle; Easy & quick installation; Includes string & screws;

Length: 4.50″
Width: 2.80″
Height: 2.50″