This children's door lock practical rotary design, one-handed press the button to rotate the direction of the lock, change the door handle open and closed state at will. Adults can operate with one hand, children and pets with little force, difficult to operate. It can withstand up to 50 kg of tension, children's lock door handle is not easy to break or be torn off by children. It is easy to install no tools, no drilling required. Simply clean the surface of the door or window, apply the included 3M adhesive to the door and you are done. To remove the door handle lock, just heat it with a hair dryer for about one minute, it can be easily removed without leaving any residue. It is suitable for almost all doors and windows with handles. In addition, the child lock is also compatible with dishwashers, cabinets, drawers, microwave ovens, etc.