This lockable pet door is designed to give your furry friend easy access to your home without compromising safety. The double-layered flap is weatherproof and UV-resistant, keeping your home protected from the elements. The aluminum frame is stable, safe, and durable, making it a great option for large dogs weighing up to 110 pounds. The flap size measures 16.8" x 11.6", and the frame size is 20.2" x 14.2". It fits screens, glasses, doors, and walls, making it a versatile choice for any home. The magnetic flap ensures that the door stays securely closed when not in use. Invest in this locking flap door to give your pet the freedom they deserve while keeping your home secure.