Feature:1. Enhanced Security Lock: Home security door lock is made of aluminum alloy, capable of withstanding 800 pounds of force, 12 times stronger than normal bolts. Prevent forced entry and ensure doors cannot be opened from outside.2. Versatile Application: Door reinforcement lock is suitable for front doors, interior doors, bedroom doors, side and garage doors, as well as basement doors. Boost home security and confidence in maintaining any forced entry.3. Child Safety Design: Spring loaded design prevents children from opening doors on their own. When locked, the reinforced door latch prevents doors from being kicked in, locked, specifically designed for single women living alone.4. Easy to Use: Grooved design allows for easy unlocking of the door security lock from the inside, especially in emergencies. Unlocking and locking can be done in one second. A convenient and fast door security device.5. Durable Material: Crafted from high strength aluminum alloy, the defender security door lock is built to last and provide long lasting protection for a variety of household doors.Specification:Item Type: Home Security Door LockMaterial: Aluminum AlloyApplication: Fit for All kinds of household doors.Package List:1 x Safety Door Lock4 x Screws1 x Instruction Manual