With the pet screen door, you can close your doors and windows, and while protecting your home, it will not restrict your pet's freedom. It is a good tool for families with pets. Features: Good quality material: This pet screen door is made of Good quality ABS and nylon materials, durable and strong, not easy to be harmed by your pet. Simple installation: The package includes tool sets and installation instructions, easy to install, strong enough and not easy to break. Automatically lock: When your dog slides the screen door, the built-in magnet can automatically close. Even if you want to prevent the pet from walking freely, you can lock the door with the blue lock. Scope of installation: Only install this pet door on internal/external mesh doors, windows and other mesh areas. It can not be used for very thick wooden doors, iron/aluminum doors and walls. Specifications: Item: Pet Screen Door Color: Black Main Material: ABS, Nylon Mesh Outer Frame Size: 29*24cm; Inner Frame Size: 26*20.5cm; Thickness: 1.25cm Suitable for: Small Cats and Dogs Note: * There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Package Information: Package Size: 24.7*29.5*1.9cm Package Weight: 345g Gift Box Package