4 types of locks (open, off, on / off, locked) - Four-mode cat flap, locking with switches, only swivel, inside and out, fully lockable, easy to control and easy to get in and out your animals; With the cat flap, you no longer have to constantly close and open the door to wait for your pets to arrive. Perfect Glass Decoration - Clear design to fit it into your window, great for windows, sliding glass doors, glass windows; Ideal for all glass adaptations; your pets will immediately fall in love with the elegant cat flap. Simple and Comfortable - Two parts in the cat flap: the door brush dampens the door noise, the inner rubber ring protects your cats from injury; Silent movements do not frighten pets or disturb the owner. The cat is thus free to go in its litter box. Durable and resistant - All doors are made of strong ABS plastic, weather resistant and very comfortable and easy to use - Robust construction of 100% UV resistant polycarbonate for a virtually unbreakable door. Suitable for all pets - Size: 18cm x 20cm, suitable for all types of cats and some small dogs (6kg); to offer more freedom to your pets, do not hesitate to order this hatch.