Heavy Duty Stainless Steel Door Chain Lock Built for Durability: Crafted from quality stainless steel, this door chain is designed to resist wear, corrosion, and rust, ensuring reliable performance and extended service life. Strong and Secure: The robust construction provides dependable protection for your home, apartment, or hotel room, helping to prevent unauthorized entry while allowing the door to be partially opened for safe viewing or ventilation. Easy to Install: Simple installation process suitable for most standard doors, cabinets, and wardrobes. All hardware is included, making setup quick and convenient without the need for specialized tools. Enhanced AntiTheft Design: The secure latch mechanism is engineered to deter forced entry attempts, adding an extra level of safety to your property. Practical Applications: 1. Residential front doors for added security when interacting with visitors. 2. Apartment entrances to prevent breakins while maintaining privacy and controlled access. 3. Hotel or guest room doors to provide guests with additional peace of mind while inside. Material: Stainless steel Compatibility: Suitable for wooden, metal, and composite doors, cabinets, and wardrobes with standard fitting dimensions. Function: Allows partial opening of the door while maintaining lock engagement, providing visual and verbal communication without compromising safety. Performance: Resistant to deformation under force, maintains secure latch function over time, and performs in varying indoor environments without rust or degradation.