- Quick Lock Mechanism : Designed with a steel ball embedded in a movable handle, this door safety guard allows for smooth and rapid locking. An effective upgrade from traditional door chain locks, it enables you to secure your door swiftly in emergencies by simply moving the swing bar. - Durable Construction : Crafted from high-quality zinc alloy, this door security device is resistant to breakage and structural deformation. Its polished and brushed nickel finish not only offers a sleek appearance but also ensures it remains rust-proof, maintaining its look without damage or discoloration over time. - Child Safety Feature : This door safety chain restrictor is essential for protecting young children. By installing the device out of their reach, you can effectively prevent them from opening the front door, thereby reducing the risk of unwanted visitors entering your home. - Versatile Use : The lock allows the door to open approximately 30-50mm, providing secure visibility to the outside. This means you can identify visitors without fully opening the door. Additionally, it allows for slight ventilation while keeping your home secure. - Applicable Across Various Settings : This security solution is ideal for multiple locations, including front doors, bedroom doors, windows, patios, and even hotel doors. Its robust design helps mitigate forcible entry attempts, enhancing safety in residential and commercial spaces alike.