Practical pet screen stand: internal dimensions 14 x 12 x 0.5 inches, external dimensions 16 x 14 x 0.5 inches. This pet screen door is designed for windows or screen doors to let your pet in and out. Very convenient, they can go in and out on their own. Self-closing and lockable: our dog screen doors have built-in magnets that automatically close the door when your dog leaves. You can even lock the door to prevent your pet from going out at night or when you are away. Sturdy and durable: Made of high quality ABS material. Reinforcement of screws makes our screen door strong enough not to collapse easily. It can last for a long time. EASY TO INSTALL AND USE: Our dog screen doors are easy to install. You can install it yourself. Your beloved pet can also be easily pushed or closed. Multifunctional: The pet screen door allows you to install the screen door on screen doors, windows and any other area mosquito net. It is suitable for all pets, including small and medium-sized dogs.