AUTOMATIC CLOSING DOOR: When the door opening angle is less than 90°, the door will automatically close when you let go, 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.TWO ROTATABLE LOCKS: Featured on both sides at the bottom, these are in addition to the lock on the top, which can be opened with a single hand – just slide both ends at the same time and lift.DURABLE MATERIAL: Made from spray-treated metal, it's strong and stays in shape when in use. Surface adopts lead-free treatment, keeping pets safe.DIMENSIONS: Without adjusting screws: 76.2H x 136.3W. Extension: 76.2H x 17.5W, 20.3W and 30.5Wcm. NOTE: This gate fits these openings: 74-80, 91.5-100, 104-117.5, 121.5-130 and 141.5-147.5cm. Please measure your opening before purchasing.ASSEMBLY REQUIRED.