General description The Security Chain is a robust door chain lock made from high-quality 304 stainless steel, designed for enhanced security in various settings such as homes, hotels, and apartments. Its durable construction ensures long-lasting use, while the thicker chain provides excellent load-bearing capacity to withstand external impacts. Technical specifications Material: 304 stainless steel Chain length: 163 mm Large base dimensions: 123 mm (length) x 21 mm (width) Small base dimensions: 71 mm (length) x 34 mm (width) Installation Easy to install with included screws Usage Cannot be unlocked from the outside, only from the inside Suitable for all types of wooden and metal doors Ideal for homes, hotels, apartments, and rental houses