High Quality Material: The pet flap is made of high quality ABS material, with smooth surface, very strong and quality assurance. 4 Way Lock: The cat door with lock has 4 switch modes. The cat door can be adjusted by the red and green switches with labels. Can be set to OPEN, ONLY, SORRY or fully locked, easily adjustable, making it easy to keep your pets in or out, offer more freedom for your cat or small dog to come without disturbing you. Thoughtful Design Transparent Visibility: The transparent flip cover that most pets like, let your pet through the door. The outer screen is for waterproof. The brush strip reduces the noise of the door closing; ensuring that pets and owners will not be disturbed. Easy to install Cat Flap Door: Complete instructions included, Durable, weatherproof pet flap with inner telescopic frame, you can easily install in windows, doors, cabinets, etc. Pet cat and dog size: Outer diameter: 26cm, inner diameter: 20cm, thickness: 6cm. Suitable for all occasions, such as: glass, metal doors and windows, wooden doors and windows, various windows, etc. Product description If you have a cat at home, you know how tedious it is to open the doors when your cat wants to use the litter box or when she wants to move out. The ultimate solution to this is a cat door, as after installation, you no longer need to manually open the door for your cat. With flexible operation of the cat door, you just need to move your finger and toggle the red and green switches on the cat door: free entry, entry only, exit only and lock four modes, after the cat passes through the cat door, the magnet at the bottom will return it to its original position. You are not forced to open the door. You also prevent your cats' unwanted behavior like scratching on the door or walls, excreting in the house. Product parameters: Name: Cat flap door / cat flap / dog flap Material: high quality ABS Color: black Sizes: Outer diameter: 26cm, inner diameter: 20cm, thickness: 6cm Suitable for: cats, dogs, kittens, puppies Applicable places: Suitable for all glass and thin plates Installation: easy to install, with operating instructions and all installation tools,