General description The door anti-theft chain is made of durable stainless steel, designed to enhance home security. It features an anti-snap spring mechanism that allows the chain to be opened only from the inside, preventing forced entry and ensuring the safety of you and your family. The robust construction includes a thicker chain and tight torsion welding, making it resistant to breakage and rust over time. This chain can be installed at high locations to prevent children from accidentally opening the door. Technical specifications Material: Stainless steel Durability: Rust-resistant and break-resistant Chain thickness: Thicker chain for enhanced security Compatibility and accessories Suitable for all kinds of wooden doors Can be drilled for use on iron doors Includes four screws for installation Installation Requires drilling for installation Installation may damage the wall and door Usage Ideal for homes, hotels, and various other locations