These are top quality, new manufactured assemblies. They are designed, manufactured, and proof tested to rigid FAA standards. All seat belts use proven lift to release style Davis metal to metal buckles. Push-to-release buckles are not used due to difficulties in releasing under emergency conditions. Aircraft quality alloys and 2-inch nylon webbing are used throughout. Seatbelts are certified to FAA TSO-C22f. Not FAA approved for certificated aircraft.