This is a new, unused item. I purchased a set of two, and I'm selling the extra one since I'm using one at home. It was helpful in preventing my child from opening doors (^-^) Baby Door Lock, 1 piece, Child Lock, Door Lever Lock, Door Opening Prevention, Door Lock ☑ This child lock is attached to the door to lock the doorknob. It prevents small children from opening the door and entering, thus preventing dangers. ☑ No drilling is required; it is attached to the door with the included double-sided tape. Strong tape is used, so the door can be firmly locked. ☑ It can effectively prevent children from going out the front door or entering the changing room, bathroom, or work room. ☑ You can unlock it with a single touch of a button, so if you get used to it, you can easily and smoothly remove the lock with one hand. ☑ Product size: Length 7.6cm / Width 7.0cm / Depth 3.8cm Bar length 7cm - Color: White - Type: Child Lock - Features: Super strong lock, no drilling required, one-touch opening/closing Thank you for viewing.