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 SecurityZinc alloy key storage box, great durability ensures it won& 39;t be opened forcedly. It can store keys, cards and other small items for safe and convenient access.No InstallationPadlock design, no need to install, more convenient and humanized.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.Note: Big keys may not suitable for this product, to avoid this, please read the size before purchase.Specifications:Color: BlackMaterial: Zinc AlloyWhole Size: 175 * 65 * 33mm / 6.9 * 2.6 * 1.3inInner Size: 74 * 42 * 25mm / 2.9 * 1.7 * 1.0inPackage Size: 17.5 * 7.2 * 4cm / 6.9 * 2.8 * 1.6inPackage Weight: 500g / 1.1lbsPackage List:1 * Key Storage Box1 * User Manual (English)