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 solid 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 74-101W cm. The width is 74-101 cm, 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.