Usage Tips:KEEP YOUR HOME SAFEndash; Designed to withstand 800 lbs. of force, this door guard reinforcement lock helps to prevent doors from being kicked in, increasing your home security, and keeping you and your family safe EASY INSTALLATIONndash; The included 3 hardened screws make installation a breezendash; extra security and peace of mind can be achieved in just minutes ADDITIONAL HOME SECURITY - Use this high security door reinforcement lock for additional home security only on swing-in door of any thickness door guardian. It helps to ensure any door cannot be opened from the outside. CHILD-SAFE AND TAMPER-RESISTANTndash; This door reinforcement lock has a design that is both child-safe and tamper-resistant. It can be installed higher on the door where your children cant reach Plus, not only can doors not be kicked in by intruders, it protects against lock picking and bumping while in the locked position. SWING-IN DOORS SECURITY LATCHndash; UL Certified and ADA Compliant - front door security home safety locks for doors security door locks deadbolt lock door block