Product DetailsThe Master Lock No 5400D Portable Lock Box features a 3 1 4in 83mm wide metal body for durability The portable design offers removable over the knob installation Set your own 4 digit combination for keyless convenience and increased security The shutter door protects combination dials from weather dirt and grime and molded body and vinyl coated shackle prevent scratching Product FeaturesOver the door knob design for portable installationLarge internal cavity prevents jamming even when holding multiple keysSet your own combination convenience for optimal securitySet your own 4 digit combination for keyless convenience and increased securityProtective weather cover prevents freezing and jammingMolded body and vinyl coated shackle prevent scratchiUsesThis product is mainly used outdoorsInitial password 0000 Press down to open the lock box Change Password Methods Turn A to position B and set a new password then turn B back APackage Includes 1 x Master Lock Outdoor Key Safe Box