【Environmentally Friendly and Non-Toxic】The door handle lock is made of environmentally friendly ABS material and is safe and non-toxic. It does not deform or fade. 【Strong Adhesive】High-quality adhesive on the back of the door handle lock adheres firmly to the side of the door handle and is very sticky. When the adhesive is removed, it can be completely removed by heating with hot air. 【Easy to Use】The child-safe lever door lock can be rotated 180 degrees with a button and can be used on both left and right-handed doors. The only way to lock and unlock the lever lock is to press the button and turn the handle simultaneously. [For all types of windows and doors] Designed for door handles, it is suitable for most door handles as well as windows, cabinets, drawers, etc., to fully protect your child's safety. Quick locking and unlocking. Cannot be damaged by the door and drawers. Therefore, you should use the door handle lock to prevent your child from getting too close to danger. The double safety lock cannot be opened by infants, only by parents.