Product information More information With this cat door, your cat will be very happy and will soon enjoy the freedom that the cat door offers. The brush bar can reduce noise, it is very quiet, no noise is heard, the cat can freely enter the house, and you will also have more freedom at home! Size: S - External dimensions: 19 x 20 cm (WxH), empty dimensions: 14.5 x 15.5 cm (WxH), depth: 2 cm. M - External dimensions: 19 x 20 cm (Width x Height), free dimensions: 16 x 15.7 cm (Width x Height), depth: 5.5 cm. L - External dimensions: 23.5 x 25 cm (WxH), clear dimensions: 18 x 19 cm (WxH), depth: 5.5 cm; XL - External dimensions: 24.5 x 28.5 cm (width x height), transparent dimensions: 20 x 22 cm (width x height), depth: 5.5 cm. Ideal for: dog, cat < br /> Suitable for: door, panel, wall 4-way lock: Open, fully locked, only off, only on. Pets only go in, can’t go out < br /> Pets only go out, can’t go in Pets can go in and out Pets can’t go in or out Thank you Thanks to the transparent