- Lightweight pet door with a high-quality locking blade. Installable in interior or exterior walls. After your pet passes through, it automatically closes. Sizes: S 29 cm x 24 cm; L 42 cm x 37 cm. Suitable for dogs, cats and other pets. - Stable & durable: Made of high quality ABS material, firm and durable. Easy to fit, with high temperature resistance and good shape retention. Screws reinforcement provides lasting stability and prevents detachment. - Self-closing & lockable: Built-in magnetic mechanism automatically keeps the door closed when the pet leaves. Lets your cat or small dog move freely in and out without disturbing you. - Easy to install PET folding door: Full instructions included. Easy for pets to press or close. Suitable for all doors, windows, panels or any other screen area. - Use scenarios: Between rooms inside the house to enable pet movement while keeping areas separated; on an exterior wall to grant yard or patio access with automatic closing; on window screens, panels or other screen areas to create a convenient pet entry/exit point.