RUSTPROOF STAINLESS STEEL - Stainless steel with an excellent brushed nickel finish - aesthetic appearance, rustproof, brushed finish against bumps and knocks. Heavy duty chain latch for interior door, 100% durable.with PU leather, can prevent chafing. FEATURES: Helps identify a caller before the door is fully released, stops a forced entry. Thanks to its narrow design, it can be adapted to any type of door and any size, giving your door a fresh and modern touch. SECURITY LOCKING DEVICE - The chain lock door lock cannot be unlocked from the outside. Easily unlocked from the inside. The chain allows a door to be opened slightly to allow safe viewing and ventilation. Stop the theft. CHILD SAFETY - This door chain lock can also be installed out of the reach of children so that they cannot open the door themselves. Never worry about them suddenly running outside, providing extra security at the door. WIDE RANGE OF APPLICATIONS - Suitable for installation in the entrance of the house or office. hotel, or in places where you feel the need to install, to ensure safety. Suitable for most types of windows and small doors. Perfect for home, public and commercial applications. Features: -Made of stainless steel, it features a smooth surface, a rust resistance and high temperature resistance. -This product can increase the security of residential doors and apartments, which is anti-theft and can give you more security. -This lock with a chain allows you to partially open the door to identify visitors or receive packages. -Can be easily installed on wood or metal doors for design flexibility. installation. -Suitable for installation at home or hotel entrance or places where you feel the need to install it for security reasons. Specification: Main Material: Stainless Steel and Leather Color: Silver Size: As Shown Scope of supply: 1 * Security door chain 7 * Matching screws