UPGRADED DOUBLE LOCK SYSTEM: child proofing door level designs with double lock system which deter children or pets from opening doors, keeping them in safe place. The child safety locks provide children a safe childhood.WILDLY APPLICATION & LOCKOUT-PROOF: door level lock is compatible with most standard door level handles. With 2 side buttons to control the DEACTIVE mode, the safety lock prevents you from being locked out by your children.EASY INSTALLATION & REMOVE: No tool and screw drilling needed. safety door lock can be installed with just peel & stick 3M adhesive backing. To remove, please heat the baby proof lock with blow dryer about one minutes and then peel off the glue carefully.SAFER & DURABLE: lever handle lock is made up with Non-TOXIC ABS material. The durable handle lock is stronger enough for little children to defeat or remove, which ensures your children a safe place.