Zip s Inflatable Air Wedge creates the necessary gap to insert door toolsbetween a vehicle s window and door frame. An internal stiffener keeps the bagrigid, making it easy to slide over tight weather stripping. A small manualpump and push-button release valve allows for one-hand operation. Push-button release valvae Internal stiffener Manual airpump Dimensions: 6″ x 6″ Replacement Parts Replacement Bulb: ZDT9RK