Automatic closing door: When the opening angle is less than 90 , the pet gate will shut on its own. And when it goes over 90 (The door won't close when its angle is less than 15), the door will remain open for more convenience. Easy to use: Lift the door with a single hand, whilst sliding the two buttons to open. Includes two rotatable locks on the bottom for extra security of this dog stair gate. Cat door: Featured at the bottom, the puppy gate keeps the dogs out, but allows smaller pets can still pass through, providing a secure separation. Steel frame: Strong and durable structure, this dog barrier keeps its shape when in use. The pet gates for dogs are suitable for doorways, hallways, staircases etc. Product information: With adjusting screws: 104. 1H x 74-80Wcm. The width is 74-80cm, ensure you measure your opening before purchasing. ASSEMBLY REQUIRED. NOTE: It's normal for the door lock to have a large gap before installation tighten both sides until the hole is 2-3 mm.