Features: 1.SECURELY FASTENED: Retaining grooves with snaps hold the silent brush bar securely in place, even if the brush bar falls off, it is easy to put it back into the retaining groove. 2.REDUCES NOISE: The gold and silver brush bars help reduce noise, minimize rain drops, wind or bugs, and pet entry and exit is silent. 3.4 WAY LOCKING: Cat flap door can be adjusted to 4 modes, out only, in only, in and out and fully locked with labeled red and green switches to easily control pet access. 4.EASY TO INSTALL AND USE: Pet door is suitable for installation on interior doors, exterior doors, wall, window, cabinets, glass, etc. To prevent pets from being mistakenly locked out of the home. 5.WEATHERPROOF: Weatherproof pet doors are made of ABS material, weatherproof, slippy and durable surface, not easy to be damaged, long service life. Specification: Item Type: Pet Door Material: ABS Use: Pets In And Out Of The Door PackageList: 1 x PetDoor 1 x Fixed Sticker (4 Strips) 8 x Screws 8 x Screw Cap