4 types of closure: Cat flap t have 4 closure possibilities: open inwards, open outwards, in both directions open, closed. You will not have to open the door if your animal wants to enter space. makes life easier and makes your pet free at home. Easy installation - cat flap is suitable for brick walls, wooden doors, PVC and metal doors and can be installed on doors and walls 2-5cm thick. The cat flap is made of durable, tough ABS plastic weatherproof and easy to clean. Home door size - M - Frame size: 19.7 x 19 cm, Door size: 16 x 15.7 cm, thickness: 5.5 cm. Very quiet: this door is extremely quiet and offers optimum protection against drafts with a special seal and magnetic closure. The brush bar eliminates noise when opening and closing the door. Agrees to most cats and small dogs (Pomeranian, Yorkshire Terrier, Pekingese, Dackel, etc.). Adopt transparent visual design: The transparent cover is made of high strength fiberglass, which protects against UV rays, good transparency,