High Security Combination Lock or Electronic Key Pad Lock, Electronic Key Pad Models Come with, Retractable USB Entry & Manual Override Keys, Fire-Retardant, Carpet-Lined Interior and Adjustable Shelves, 2 mm Steel Thickness in Sides/Back/Door, 2, 5 mm Steel Thickness in Top/Bottom, Fire-Resistant: Withstands Temp, up to 1400o Externally, for 30 Minutes and does not Exceed 350o Internally, 4-Way Locking System w/7 Live Action Locking Bolts, & 3 Stationary Bolts, Adjustable Barrel Rests, DOJ Certified, Dimensions:, Length:26 3/4"", Height:59 1/8"", Width:35 1/8"" SKU: HMK310