4 Way Switch Mode: With the cat flap equipped with four patterns to lock with the switches, just switch in and out only and fully locked, easy to control your pets up and down; with the cat flap, you never had to close and open your door all the time while waiting for your pets. . Perfect Glass Decoration: Clear design to make the window screen with built-in mass, ideal for display windows, sliding glass doors, glass windows; ideal for all glass applications; your animals pets will immediately fall in love with an elegant cat. Quiet and practical: Two parts with cat flap; the door brush eliminates the sound of closing the door, the inner rubber ring to protect cats without hurting themselves; quiet action does not scare animals or does not disturb the owner, allows the cat free access to its litter box. Durable and Weather Resistant: The cat door is made of durable ABS plastic, which is weather resistant while promoting comfort and ease of use. Rugged 100% UV-resistant polycarbonate