DESC: A deluxe pet door made of heavy-duty aluminum in a finish of satin, white, or bronze. Beautifully designed, high quality Petsafe Deluxe Patio Panel Pet Door inserts into the frame of your sliding glass door and automatically adjusts to the proper height. It is secure, durable, and weather resistant, and has reversible lock for left or right sliding doors. It comes in various size and finish options for your pet's convenience.