[Keep your home safe] CRANACH security door lock Designed to withstand 800 lbs. of force，12times stronger than a normal deadbolt to against being kicked in,this reinforcement lock increasing your home security and keeping you and your family safe! | [Childproofing and Tamper-resistan] This door guardian has a spring-loaded design which can keep child safe. The child proof door locks can be installed higher on the door where your children can’t reach! Plus, prevent child from opening the door to unknown people. | [Easy to Install] Use power screwdriver and drill to mount CRANACH security door lock on your door frame ,finish DIY. CRANACH reinforcement door lock installation less than 5 minutes.Equipped with two sets of screws, four 1" and four 2", the length of the screw can be selected as needed. | [Easy to Use] Place index finger on top of CRANACH security door lock and thumb on bottom and slide lock away from the base plate along the door in the direction of the hinges then pull outward.This door lock no tools required to open, just a little practice.Not only prevent breaking in but also easy to open in case of emergency. | [Quality Assurance & Warranty] CRANACH provide you with high quality home security door lock and services.We provide 5 years warranty to make sure you could buy with confidence and would try our best to solve any problem until you are satisfied.