4 Locking Ways: Kittens have 4 locking options: inward opening, outward opening, two-way opening, open, closed. You no longer have to open your door when your pet wants to enter the room. The cat door makes your life easier and frees your pet at home. Easy Installation - This pet flap is suitable for brick walls, wooden doors, PVC doors and metal and can be installed in doors and walls with a thickness of 2 to 5 cm. Includes detailed installation instructions and picture descriptions. 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. Absolutely Silent - This door is extremely quiet and offers optimal protection against drafts thanks to the special seal and magnetic closure. The brush strip 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