Usage Tips:Material: Chain Constructed from high quality stainless steel, will not break, durable, not easy to rust, and strong security.Size:5.36 inch length body, 7 inch chain length. Anti-Theft Press Lock and to Offers Reliable Protection Against Intruders. This latch is very easy to install and solid.Easy Installation: The installation is simple and convenient, We provide 4 stainless steel screws, Multiple holes for positioning, Making the installation firmer.Anti-Theft: There is a spring button lock on the door lock chain which can enhance the anti-theft performance. Can be used on wooden or metal doors on a wide variety of door types.Color: Black appearance, elegant and high-grade, strong and durable. 3-Layers Matte Black finish,build to resist daily scratches,corrosions and tarnishing.