4 locking modes: open, closed, in alone, or exit alone. These modes let your cat enter and exit as it pleases while you retain control over its access. Magnetic door suitable for a range of installation surfaces. Works with Windows, glass doors, brick walls, PVC, uPVC and metal doors. Durable and easy to maintain. Made of ABS plastic, this flap is resistant to scratching by cats and small dogs. It is easy to clean and designed for long service life. Control and convenience for everyday life. Use this cat flap to manage your pet’s comings and goings and free your time to open the door when needed, without worrying about your pet. At the same time your pet will enjoy a larger, more flexible living space. Use scenarios - Night or away from home: set to closed or one-way modes (in alone or exit alone) to limit where your pet can go while you’re sleeping or out. - Outdoor access without constant supervision: use exit alone to allow your cat to go outside without requiring you to open the door. - Free movement during the day: set to open to permit unrestricted entry and exit between indoors and outdoors as your pet wishes. Specifications and compatibility - Surface compatibility: Windows, glass doors, brick walls, PVC, uPVC and metal doors. - Material: ABS plastic - Modes: open, closed, in alone, exit alone - Function: magnetic pet door designed to control pet access while providing freedom for your cat or small dog.