?4-way cat flap? Four-way locking cat flap: always open, only entry, only exit, fully locked, makes it easy to control your pets in a simple and clean way; with a cat flap you don’t have to more to close and open the door to wait for your pets. ?Quiet and comfortable? Glass cat flap with two protections; the brushes prevent the door from making noise, the rubber interior protects your cats from injury; the silent opening does not scare the animals or disturb the owner. ?Durable and strong? Transparent round cat flap is made of durable ABS plastic, weatherproof, sturdy, comfortable and easy to use. ?Wide application? Ideal for windows, sliding glass doors, window panes. ?Suitable for all pets? Hole Door cat flap suitable for all types of cats and some small dogs (6 kg). Durable Material: This flap cat door was made of high quality ABS plastic, it is sturdy and weatherproof; The transparent surface is easy to clean. Easy to install: Equipped with screws, you can fix the pet door, not