About this item Convenient Pet Screen Door: outer size: W:24cm*H:29cm. This pet screen door is designed for screen windows or doors to let your pets in/out. It is so convenient that they can come in or out on their own. Self-closing & Lockable: Our dog screen door with built-in magnet can keep the door automatically closed when your dog leaves. You can even lock the door to prevent your pets from going out at night or when you are not at home. Sturdy & Durable: Made of high-quality ABS material. Screw reinforcement makes our pet screen door stable enough and never falls apart easily. It can last for a long time. Easy to install & use: Our dog screen door is easy to install. You can install it by yourself. It is also easy for your beloved pets to push or close. Versatile: The pet screen door allows you to install your pet screen door in a screen door, window, and any other screen areas. It is suitable for all pets up to small/medium dogs. Package list: Pet Screen Door*1