The J-Hook Aviation Headset Hanger is designed to be installed on one of the tube cross members in the cockpit of aircraft with exposed tubing upon which to hang your headsets when not in flight. This makes entering or exiting the aircraft much easier and eliminates the chance of damaging your headset or the interior of the aircraft. This product has been machined from 6061-T6 aluminum with stainless steel hardware for a lifetime of service. Mounts to a 3/4" tube. EAB ONLY NOT FAA/PMA APPROVED.