Prevent Forced Entry - Made of all-aluminum alloy, the sturdy home security door locks can withstand 1000 lbs of force, 15 times stronger than a ordinary deadbolt, It can prevent the door from being kicked in, and ensure any door cannot be opened from the outside. This reinforcement safety door lock guards your home safe. | Adaptability - It is suitable for front doors, door inside, bedroom doors, side and garage doors, and basement doors. Use this high-security door reinforcement lock to prevent breaking in. You will be much more confident in your doors being able to sustain any sort of forced entry. | Home Security - This reinforcement lock has a spring-loaded design to prevent children from opening the door on their own. While locked, this reinforcement door latch protects against the door being kicked in, lock picking, and bumping and it is designed for women living alone, the elderly. | Easy to Install - Each metal door reinforcement lock is equipped with a total of 8 screws including 4 long and 4 short ones, select the appropriate screws, and use an electric drill to install them within 5 minutes. Easily add an extra lock to your door, and match any inward swinging door. | Easy to Use - Groove design for easy opening of the door safety locks from the inside, especially in an emergency. Unlocking and locking can be completed within a second. No tools are required to open it, just a little practice. The most convenient and fast door security device. We offer a one-year free warranty on our products.