General description This Secure Key Box is designed for both indoor and outdoor use, providing a reliable solution for storing multiple keys securely. With its extra-large capacity, it can accommodate house keys, car keys, and security cards, making it ideal for home, office, garage, school, or gym use. Technical specifications Inner size: approximately 4.3 x 3 x 1.6 inches Material: hard aluminum alloy Features: rust-proof, waterproof, and corrosion-resistant Installation Includes 4 free screws and 4 expansion plugs for wall mounting Usage Set and reset your own 4-digit combination for easy access Simple and classic design makes it a practical addition to any space Other information Note: Manual measurements may allow for a 1-3cm error Color may vary slightly due to lighting and display differences