Quality Material: The door chain is made of high-quality stainless steel. Rust-proof and durable. With good resistance to corrosion and wear, which can be used for a long time. Durable. Save the environment. Delicate Design: The front door lock is made of polished stainless steel with nickel-plated polishing. To care for, delicate and exquisite. And still new after a long time. The back is also finely crafted. All stainless steel design. Beautiful and generous. No rust and no fading. Long-lasting use. Wide Application: The interior door lock is suitable for most places, as an apartment door lock, hotel door lock, office door lock, bedroom door lock, storage room door lock, basement door lock, garage door lock, closet door lock, French door lock, etc., which is advantageous. to protect the safety and privacy of family members Easy to install: The door security lock is easy to install. Simply use a screwdriver to attach the lock to your door or window. It only takes a few minutes to install. It comes with the 6 screws needed to ensure smooth installation Security: The door lock is made of solid steel and is durable enough to prevent strangers from entering your home, significantly improving your home security