ZDD IThe door lever lock cannot be opened by most children Other designs can be opened by small children. They dont provide the guaranteed security you need. Our lock requires an adult to press the button on the side of the lock EASY TO OPERATE - Both men and women can easily open and close the child safety door handle with one hand. You can open this lock with just 2 fingers. Just press the release button on one side to deactivate. Press the 2 side button to switch to deactivated mode, it prevents you from being locked out by your child. Super easy to install - no tools required. No drilling required. Just stick to your door with the included 3M adhesive. To remove the lock, use a hair dryer to heat the 3M sticker and remove easily. There is no damage or marks on the door. Upgraded child door locks: No more children locking you in your room. The only way to lock and unlock the child door lock is to press the button. This door handle lock is made of improved ABS material (mixed with 20% PC for better hardness) and better 3M glue (17N/100MM), it will not be easily broken or removed by children, which will ensure you children have a safe space full of hope. Size: 12*7cm color: White Packing list: 1pcs