Material: The cat flap is made of ABS plastic, strong and durable, cat/dog scratch resistant, weather resistant and easy to clean. Size: outer door is 22.5 long * wide 20 thickness 3cm, inner door is 15* wide 15.5cm, suitable for cats and small dogs with waist circumference under 60cm. 4 lock modes: the button can be rotated in 4 directions, you can use arrows and icons to easily rotate it in 4 modes to control chat access options: only enter, only exit, free entry and exit, full lock. > Quiet and noise-cancelling: This door is very quiet and offers the best wind protection thanks to a special sealing and magnetic closing device. The brush rod eliminates noise when opening and closing the door. Strong Functionality: This kind of magnetic pet door is suitable for windows, glass doors, brick walls, wooden doors, metal doors, etc. With this cat flap, you can control your pet's entry and exit, and your pet will fall in love with a large free house. With this cat flap, your cat will be very happy and enjoy the freedom offered by the cat flap. The brush rod helps reduce noise, it is very quiet, cats can freely enter the house, and it can also bring you convenience! Specifications:< /p> Material: ABS door material, frame material: acrylic Size: Outer door part length 22.5 * width 20 * thickness 3cm Inner door piece length 15 * width 15.5cm Weight: 322 grams Field of application: small dogs, cats Recommended weight: weight