1、ENHANCED CHILD SAFETY: This safety lock provides an extra layer of security for children by preventing them from opening the door to strangers. Install it at a height above the door handle to ensure that your child will not be able to arrive it. 2、SPRING LOADED, CHILDPROOF AND TAMPER PROOF DESIGN: Crafted with premium aluminum material, this lock offers a higher level of security compared to traditional locks, preventing unauthorized access. 3、EASY UNLOCKING MECHANISM: To unlock, simply press up and down on the lock. Then slide the lock along the side of the door until it can be folded outward. 4、3IN LOCK DESIGN WITHSTANDS UP TO 350KG FORCE: Designed to withstand a high inward force of up to 350kg, this lock prevents the door from being kicked open, effectively enhancing your home security and protecting your family. 5、VERSATILE AND EASY TO INSTALL: This child safety lock is suitable for a variety of doors, making it versatile for use throughout your home. It is also easy to install, providing an easy safety solution for your family.