Hand-Brushed Finish : Hand brushed high quality stainless steel ensures rust resistance and long service life, adding an aesthetic touch to your door while maintaining durability. Easy Installation : Quick and easy installation on wooden or metal doors, suitable for various door types, providing convenience and versatility for different household needs. Privacy Protection : Offers reliable protection against intruders, allowing safe observation and ventilation without fully opening the door, ensuring privacy and security. Stainless Steel Durability : Made of 304 stainless steel material, surface smooth, prevents rust formation, offering superior strength and longevity. Flexible Positioning : Can be positioned above or next to the door panel, providing flexibility for optimal placement according to individual preferences. Experience peace of mind with our High-Quality Security Door Chain Lock, a testament to robust craftsmanship and design. With its brushed finish and anti-rust properties, it's a stylish yet practical addition to any home.