Feature:Made with high quality metal for maximum durability. Cost-effective, it has most of the functions of a general smart door lock. No need to change your own door lock, economical and convenient. Full metal lock body, equivalent to a small safe, and it can store some necessarythings. Forgot to bring the key, take out the trash, getting newspapers, the door was closed ?This is not a problem! New house renovation, just put a key in it, and you don't have to go back and forth. Even if you do not put things, it is a nice decoration. Specification:Condition: NewMaterial: MetalSize: Approx 180*66*34mm/7.1*2.6*1.3inColor: As Picture ShowPackage Weight: Approx 577gPackage List:1 * Key Lock Box1 * Screw1 * User ManualNote:1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showingslightly different from the real object. Please take the real one as standard.