4 TYPES OF LOCKS - (Open, Stop, On/Off, Locked) Four mode cat flap with lock switch, only turns, inside and outside, fully lockable, easy to control and let getting your pet in and out. With a pet door, you no longer have to constantly close and open the door waiting for your pet to arrive. PERFECT GLASS DECORATION - The clear design makes it suitable for your windows, perfect for windows, sliding glass doors, glazing; ideal for all glasses; your pets will instantly fall in love with the stylish cat flaps. SIMPLE COMFORT - There are two parts to the cat flap: the door brush dampens door noise and the inner rubber ring protects your cat damage ; silent action will not scare pets or disturb the owner. Thus, the cat is free to go to its litter box. DURABLE AND SOLID - All doors are made of strong weather-resistant ABS plastic and offer great comfort and ease of use - The Sturdy 100% UV resistant polycarbonate construction makes the door virtually unbreakable. Suitable for all pets Size: