General description This Secure Large Key Box with Code & Emergency Keys is designed for high security and convenience. Made from sturdy aluminum alloy, it is waterproof, corrosion-resistant, and weatherproof, making it ideal for outdoor installations. The protective cover shields the combination dial from unpredictable weather conditions. Technical specifications Material: Aluminum alloy Inner dimensions: 11.5 x 8 x 4.3 cm Combination: 4-digit, with up to 9,999 possible combinations Installation Includes 4 screws and 4 nylon wall anchors for easy installation on any solid surface Can be drilled into the wall for added security Usage Suitable for home, garden, office, and various outdoor activities Allows safe storage of car keys while engaging in activities like surfing Other information Backup key included for convenience