The J-Hook Headset Hanger with the 7/8” tube mount is for use on the CC18 and PA-18. Designed to be installed on the tube cross members in the cockpit of your aircraft. Gives a machined hook to hang your headsets on when not in use. Makes entering or exiting your aircraft a lot easier and eliminates the chance of damaging your headsets. The aluminum hanger will give you a lifetime of service. (Price listed is per each J-Hook)