Closing types - Cats have 4 closing possibilities: open inwards, open outwards, open both ways open, closed. You no longer need to open the door if your pet wants to enter the room. The cat door makes your life easier and frees your pet at home. Easy installation - This pet door is suitable for brick walls, wooden doors, PVC and metal doors and can be installed on doors and walls with a thickness of 2 to 5 cm. Detailed installation instructions and picture s are included. If you have any questions during installation, please contact us. Cabinet door dimensions: L - Frame dimensions: 25 x 23.5 cm, door dimensions: 20 x 22 cm, thickness: 5.5 cm. Completely silent - This door is extremely quiet and offers optimal protection against draughts thanks to a special seal and magnetic closure. The brush bar eliminates noise when opening and closing the door. Suitable for most cats and small dogs (Pomeranian, Yorkshire Terrier, Pekingese, Dachshund, etc.). With grid design - The transparent flap is made of high-strength fiberglass that protects against UV rays, has good transparency, protects against the animal's grip and bites - Resistant to moisture and abrasion. 4 types of closing - Kittens have 4 closing possibilities: opening inwards, opening outwards, two-way opening and closing. If your pet wants to enter the room, you do not need to open the door again. Cat doors make your life easier and allow your pets to be free at home. Easy to install - This pet door is suitable for brick walls, wooden doors, PVC doors and metal doors, and can be installed on doors and walls with a thickness of 2 to 5 centimeters. This door is very quiet and due to its special seal and magnetic closure, it can provide the best protection against air flow. The brush rod can eliminate the noise when opening and closing the car door. Suitable for most cats and dogs (Pomeranian, Yorkshire Terrier, Pekingese, Dachshund, etc.). Grid design: The transparent baffle is made of high-strength fiberglass, which can prevent ultraviolet rays and has good transparency, preventing animals from grabbing and biting, moisture-resistant and wear-resistant.