The ACES Systems LaseTach Swivel Mount is used with the 199F LaseTach, 299 LaseTach or PhotoTach. It has a plastic 3” x 3” base with a rubber membrane on the bottom to prevent scratching of aircraft surfaces. The locking handle releases or locks in place a ball type swivel which is mounted between two flexible jaws. The swivel head will rotate 360 degrees while tilting in a 180-degree arc. The mounting stud is a standard camera-style ¼”x20 threaded stud.