Material: ABS plastic cat flap, safe and healthy, strong and durable, windproof and waterproof, for long-lasting use. The bottom of the door has a magnetic closure, very quiet. It makes no noise even after many passages. Four-way door: The cat flap is equipped with red and green sliders to control four ways of entry and exit. The first opens in both directions, the second allows entry only, the third allows exit only and the fourth is fully closed. Easy installation: The cat flap is easy to install. The package comes with screws and instructions with cutting templates. Simply follow the installation instructions. Dimensions: The cat flap measures 25 cm long, 23.5 cm wide and 5.5 cm thick. The length of the cat flap is 19 cm and its width is 18 cm. The pet's weight should not exceed 6 kg and its waist circumference should not exceed 45 cm. Application: The cat flap is suitable for many small animals, kittens and puppies. It can be installed on interior and exterior doors, such as wall