Premium Material: Door chain locking is made of brass, which is strong and wear resistant, not easy to damage, and can be used for a long timeSturdy Structure: Front door security chain, solid base design, widened and thickened, not easy to break, ensuring the stability of the productScrews are Not Loose: The latch chain design takes into account the stability during use, and the screws are not easy to loosen, ensuring the safe of useCompatible Retro and Fashion: The simple design is compatible retro and modern styles, suitable for various decorative styles, and enhances the taste of homeFlexible Installation: Guard can be installed on wooden doors or metal doors, with a wide range of applications to meet the needs of different door types Specification: Material: BrassProduct Size: Chain Length 22cm/8.66inch, 8.5cmx3.4cm/3.35inchx1.34inch Package Includes: 1 Door Chain Locking Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.