[Chain Locks for Inside Door]: Door chain lock adds extra protection to your door to prevent others from sneaking into the room, protecting your security and privacy. The chain of chain door lock allows you to keep the door slightly open for safe observation and ventilation.,[Door Chain Locks for Kids Safety]: Door lock chain can be installed out of the reach of children to prevent them from opening the door, providing additional protection for children. Chain door guard can also be used to prevent pets from opening the door or leaving a gap for pets to pass through.,[Widely Used]: Door chain lock is a common classic style for many types of doors, such as front doors of homes, bedroom doors, apartment doors, rental room doors, dormitory doors, hotel doors, basement doors, storage room doors, cabinet doors, windows, and more.,[Quality Throughout]: Chain door lock is made of high quality stainless steel, rustproof and wear-resistant. The plate and chain are thickened to make it stronger and more stable. The edges are polished to make it smoother. Longer and thicker stainless steel screws make it more securely installed.,[What You Get]: 2 door chain locks and 12 screws for installation. Please check the pictures for the size and weight of this product and make sure it is suitable for your use before purchasing. If you have any questions about this product, please consult us and we will respond as soon as possible.