Durable And Resistant: All doors are made of strong ABS plastic, which is weather resistant and offers great comfort and ease of use - Robust construction in 100% UV resistant polycarbonate for a virtually unbreakable door. > Perfect Glass Decoration - Clear design to fit it into your window, ideal for windows, sliding glass doors, glass windows; Ideal for all glass adaptations; your pets will immediately fall in love with the stylish cat flap. 4 Types Of Locks - (Open, Stop, On/Off, Locked) Pet door four modes, lock with switches, only swivel, inside and outside, fully lockable, easy to control and enter and take your animals out; With the pet door, you no longer have to constantly close and open the door waiting for your pets to arrive. Simple And Comfortable - Two parts in the cat flap: the door brush dampens 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 to its litter box.