All-steel construction Easy to program electronic lock allows a 3-8-digit personal code 1 shelf Backup key - 2 included Color: Black Predrilled mounting holes, mounting hardware included Battery Powered: 4 AA included Model: 23NEK VIPRB-23NEK Ideal for safekeeping money, important documents, and more Perfectly sized to keep on a desk, on a shelf, in a closet, or hidden in a cabinet Exterior Dimensions: 9.84 in H x 16.93 in W x 14.76 in D Check out all the Pen + Gear office essentials like binders, planners, highlighters, and so much more