Pet Door for Screen Door: This dog and cat door is designed for screen windows or sliding doors. Give your dogs a separate door, they can go out or in every time by themselves and you don't need to open the door. And the cat flap has its own screen, and you don't have to worry about anything coming in. It is convenient for your life and provides independent access for your pets. Cat Flap Size: Inner size: 9.4 * 7.4 * 0.39 inches, outer frame size: 11.4 * 9.49,0.39 inches, suitable for all cats, kittens, small medium breed dogs and other small animals. Please measure your pet's size and compare to the door size before purchasing. Lockable Door & Magnetic Design: 4 locks allow you to completely lock the door when you don't want your pet to go out. And 1 magnet at the bottom of the door frame, the door will automatically close quickly after your dog goes through, and due to the magnetic force, flies and other small creatures can't get in. Durable & High Quality Material: The dog screen