Easy to Use: To operate this door lock security device, simply place your index finger on the top and thumb on the bottom, then slide the away from the base plate toward the hinges before pulling it outward. No extra tools are required once installed, and with a little practice all family members can lock and unlock quickly. Upgrade Security Design: 3" stop metal construction home security door lock is engineered to withstand up to 800 lbs of force, over 12 times stronger than a standard deadbolt, helping prevent doors from being kicked in. Each door lock includes 8 screws, 4 long and 4 short, Easy to Install: Using a power screwdriver and drill, you can mount this security door reinforcement lock on most inward swinging doors in under 5 minutes. The included installation manual guides you through positioning, drilling, and fastening for a snug fit to the door frame. Home Security & Childproofing: This child proof door lock adds an extra layer of protection for toddlers, seniors, and women who stay alone . The spring-loaded design helps prevent children from opening the door to strangers, giving parents peace of mind when they are sleeping or busy. Mounted high on the door,, Weight: 1.10231131 pounds, Manufacturer: UieoKakeh