STRONG DESIGN: Designed to withstand 800 lbs. of force. The door reinforcement lock is heavy-duty construction, very solid and secure. Helps to protect anyone opening the door from the outside, increasing your home security and keeping you and your family safeKEEP YOUR HOME SAFE: Upgrade night lock design make you feel safe with the extra protection. 12 times stronger than a normal deadbolt to against being kicked in. Secure lock guard your home safe. Not only prevent break-in but also easy open in case of emergencyCHILD PROOF: The spring-loaded design makes this door latch a child safe; It can be installed higher on the door where your children can’t reach. Works good for keeping a child from sneaking out the front doorEASY TO INSTALL: Included hardened screws make installation a breeze. Use power screwdriver and drill to mount security door lock on your door frame, finish DIY door lock installation minutesEASY TO USE: Easy to lock and unlock. No tools required, just a little practice. Not only prevent break-in but also keep you child proof