About Alvinlite Brand: Alvinlite is a global household goods brand registered in the European Union, focusing on providing a full range of high-quality household goods with the ultimate cost-effectiveness. May happiness always be with you! Specification: Item Type: Key Box Material: Zinc Alloy Color: Gray, Black (Optional) Weight: Approx. 900g / 31.7oz Product Size: External Size: Approx. 14.7x9.2x5.8cm / 5.8x3.6x2.3inch Internal Size: Approx. 8.2x7.3x5.1cm / 3.2x2.9x2.0inch Notes: 1. The original codes is 0000. It is recommended to make changes during installation. 2. When not in use, please close the waterproof cover. 3. When not using for a long time, please open it once a week to prolong the service life. Package List: 1 x Key Box 1 x Screws Kit (4 x Screw, 4 x Expansion Screw) 1 x Key 1 x Manual Note: 1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.