Feature: 1. Contains complete instructions for you to easily install on Windows, doors, cabinets, etc. Very suitable for cats and puppies, the door is suitable for pets weighing less than 15 pounds or smaller. 2. Save the time to open the door, free control of the cat in and out. Durable, weatherproof pet flip cover prevents cold air from entering. 3. Exquisite design, transparent flip cover allows your pet to see from the door, thereby reducing the fear of use. The outer screen prevents rain, wind, snow, mosquitoes and other insects from entering. 4. After the cat passes through the cat door, magnet at the bottom causes it to return to its original position. 4 switching modes, only switch, only in, in and out, fully locked, easily control your pet in and out; easily move the red/green switch. 5. Equipped with buckle groove, can be fixed soft waterproof brush. The brush covers the gaps in the flame, effectively reducing external noise. Specification: Item Type: Pet Flip Door, Material: Plastic. Package List: 1 x Pet Door, 8 x Screw, 8 x Nut, 1 x Double-sided Tape, 1 x English Manual. Note: 1. Please measure the cat's weight and waistline before placing an order. Make sure that the weight of the cat should be less than that. 2. If the rotating shaft is stuck in cold weather, just drop a few drops of oil (not freezing) and you will find it returns smoothly. 3. In order to meet the needs of different doors, we have prepared two types of screws, the longer screws are used for thick doors, and the shorter screws are used for thin doors.