Protect your baby: if the baby is curious to explore the house, it is easy to be injured by the door and drawers. So you need to use the door handle lock to prevent your baby from getting close to danger. The double safety lock cannot be opened for babies, parents already.[For windows and doors of all kinds] Designed for door handles, it is suitable for most door handles as well as for windows, cupboards, drawers etc. to fully protect the safety of your child. Quick fuse & release Environmentally friendly and non-toxic: the door handle lock is made of environmentally friendly ABS material and is safe and non-toxic. Do not use deformation, no fading. Strong adhesive: high-quality adhesive on the back of the door handle lock, which sticks firmly to the side of the door handle and is highly viscous. When removing the adhesive, it can be completely removed by heating with hot air. Easy to use: the children's door lever lock can be rotated 180 degrees with a button, and can be used for left and right doors. The only way to lock and unlock the lever lock is to press the movable button while turning the handle at the same time. Product Child safety window safety first. Two push button system: this baby safety lock makes it difficult for babies and pets to open the door, but adults can still have easy access by simply moving the lever. Can be removed without leaving any residue: if you no longer need the window and door lock, you can remove it without leaving any residue. Notes: When your child grows up and you no longer need this door security lock, simply remove the lock and the remaining adhesive can be removed with alcohol or glue remover. The door will not be damaged. Suitable for: Window. Room doors of all kinds; patio door; front door. How to use it? 1. Rub the adhesive on the side of the door handle lock. 2. Place it on the side of the handle and make sure that the handle is in the middle of the lock. 3. Stick it firmly to the side of the handle. 4. simultaneously print the movable button from top and bottom and then rotate it 90 degrees to keep it perpendicular to the door. Box contents: 2 x child lock windows.