This is a baby gate from KATOJI. The door automatically locks after being opened with a button. I purchased it 4-5 years ago and used it for 2-3 months, then stored it in its box. This white baby gate prioritizes safety with a height of 79cm and an adjustable width of 75-85cm. - Brand: KATOJI - Product Name: Baby Safety Auto Gate - Color: White - Height: 79 cm - Width Adjustment Range: 75-85 cm - Model Number: 63423 Retail Price: 5,478 yen Thank you for looking.