Security Door Lock: The home safety door lock is constructed with high-strength aluminum alloy, making it lightweight yet robust, capable of withstanding approximately 800 pounds of force, equivalent to 12 ordinary door latch locks. With just one safety lock per door, it can prevent the door from being kicked open from the outside, ensuring the safety of your home. Easy Installation: The reinforcement home security door lock comes with four screws and an installation manual. After selecting the installation position on the door frame, use a screwdriver and a drill to complete the installation. Easy to Use: Simple operation – pinch the top and bottom of the security door lock with two fingers, slide it towards the door, and then pull it outward to open the safety door lock. To prevent children from easily opening the door lock, a bit of force is required for the lock to open. With a little practice, it can be opened quickly. Wide Range of Uses, Childproof: The safety door lock can be used on both front doors and indoor doors. Whether you have children at home and want to prevent them from running out for their safety or you are a woman or elderly living alone, this safety door lock can be used to protect your home's security by locking the door from the inside.