Function: 1. Includes full instructions for easy installation on windows, doors, cabinets, etc. Very suitable for cats and puppies, the door is suitable for pets weighing less than 15 pounds or less. 2. Save time opening the door, free control of the cat entering and exiting. Durable, weather-resistant pet flap prevents cold air from entering. 3. Exquisite design, transparent flap allows your pet to see from the door, thus reducing the fear of use. Siatka prevents rain, wind, snow, mosquitoes and other insects from entering. 4. When the cat passes through the cat door, the magnet at the bottom causes the cat to return do its original position. 4 switching modes, switching only, only entering and exiting, fully locked, easily control your pet; easily move the red/green switch. 5. Equipped with a buckle groove, you can attach a soft waterproof brush. The brush covers gaps in the flame, effectively reducing outside noise. Specification: Item Type: Pet Flip Door Material: plastic; List of packages: 1 x animal door; 8 x Screw 8 x Nut 1 x Double Sided Tape 1 x English Manual Note: 1. Make sure your cat’s weight should be less than that.2. If the rotary roller gets stuck in cold weather, simply drop a few drops of oil (without freezing) and you will notice that it returns smoothly.3. To meet the needs of different doors, we have prepared two types of screws, longer screws are used do thick doors, and shorter screws do thin doors.