4-WAY LOCK (IN, OUT, IN/OUT, LOCKED) With the cat flap equipped with four models to lock with the switches, just swing, only in and out and completely locked, easy to control your pets and up; With the cat flap you never had to close and open your door all the time waiting for your petsPERFECT GLASS DECORATION Clear design to make the window screen with integrated mass, ideal for screen windows, sliding glass doors, glass windows; Ideal for all glass application applications; Your pets will immediately fall in love with a stylish pet flapSILENT AND CONVENIENT Two parts with cat's flap; Door brush strip eliminates noise from door closing, inside rubber ring to protect cats without hurt; Silent action will not scare pets or disturb the owner, allow the cat to freely access his litterDURABLE & WEATHER-RESISTANT The whole cat door made of durable ABS plastic, weather resistant while prefers comfort and ease of use; Sturdy 100% UV resistant polycarbonate construction ensures a virtually indestructible dog doorSUITABLE FOR ALL PETsThe size of the flap is 7.25" x 8", suitable for all breeds of cats and some small dogs (6kg/13lbs); So if you want to give your adorable animals more free space, please feel free to order our pet door