Features: 1. Can be used as a secondary or additional safety feature for hinged swing-in doors 2. Provides enhanced protection against forced entry, allowing additional time to respond and seek assistance 3. Constructed from high-quality solid zinc alloy for durability and strength 4. Features a polished, brushed, and plated surface treatment with oil seal for rust resistance and long-lasting performance 5. Includes rust-proof screws for easy installation 6. Reinforced with stainless steel components to provide extra strength Specifications: - Main Material: Zinc Alloy - Chain Material: Stainless Steel - Fixed Plate: Stainless Steel - Surface Treatment: Polishing + Brushing + Plating + Oil Seal - Thickness: 4.3mm - Chain Length: 70mm - Model Number: 022 - Surface Finish: Brushed - Package Includes: 1 x Door Security Chain Note: Actual color may vary slightly due to differences in monitor displays and lighting conditions.