Use this key storage box to keep your keys safe and secure in case you lose them on your travels or someone drop in when you are not at home! 4-digit combination offers thousands of passwords. Great durability protects your keys from being damaged by hammer, saw or drill. No need to replace tradition door lock to smart lock, just purchase this key storage box! Features: Key SecurityAluminum alloy key storage box, great durability ensures it won't be opened forcedly. It can store keys, cards and other small items for safe and convenient access. 4-Digit Password4-digit combination offers thousands of passwords settable, resettable, superior security. Convenient & PracticalNo need to carry the keys when going travelling or business trip, avoiding the risk of key loss. Wide Range of UsePerfect for emergency entry for seniors, families, friends, realtors, home healthcare access, vacation homes, construction, trades, and storing spare keys, etc. 2 Installation MethodsComes with installation accessories for taking place of the door mirror, or for wall-mounted installation to be fixed on any solid surface. Note: Big keys may not suitable for this product, to avoid this, please read the size before purchase. Specifications: Color: Sliver/ Black/ Red (Optional) Material: Aluminum Alloy Whole Size: 12.5 * 9.5 * 4cm / 4.9 * 3.7 * 1.6in Inner Size: 10 * 7cm / 3.9 * 2.8in Package Size: 13 * 10 * 5cm / 5.1 * 3.8 * 2.0in Package Weight: 580g / 1.28lbs Package List: 1 * Key Box 1 * Set of Installation Accessories 1 * User Manual (English)