- Double locking system ensures your pet is secured in a place and provide maximum safety - The door can be closed automatically when its opening angle is less than 90°, and stay open when it goes over 90° - This safety gate for stairs allows the door can swing in both directions - Adult can open the door with a single hand by sliding the button on both ends at the same time and lift - Solid sprayed steel frame with the lead-free treated surface for security - Equips with 4 adjustable screws, fits the opening 29.1"" -31.5""(74-80 cm) (Please measure your opening before purchasing) - 41"" (104.1cm) extra high design to avoid pets jumping over - A small door allows cats to pass through