About this item 4 Locking Modes: Cat Flap, Cat Door. The cat door with lock has 4 switching modes, the cat door can be adjusted by the red and green switches with tabs, can be set to open, in only, out or fully locked, easily adjustable, which can keep your pets in or out. Excellent Design: The flap size is 7.25" x 8"; our small dog door is suitable for all breeds of cats and some small dogs up to 13 lbs. Durable Materials: The pet door is made of high quality ABS, weather-resistant, sturdy, durable; Sturdy UV-resistant polycarbonate construction, the transparent flap allows your pet to see through the door, reducing the fear of using it. Durable and weatherproof cat flap that keeps out cold air. Beautiful decoration for window and glass door: The door flap is transparent, so after installing on a clear glass window/door, they look like a whole body; ideal for installing on glass window and sliding door. Excellent design: The screws have been reinforced to make the cat door more