Heavy-gauge steel with tamperproof hinges. Vertical louvers provide ventilation. Full-length door stiffeners add rigidity and deaden sound when opening/closing. Recessed black metal handles. Padlock hasp on each door. Includes number plates for locker identification. Optional Locker Base (TNN110348), sold separately, raises locker 6" off floor for easier access to bottom units. Multiple rows of lockers can be ganged with standard nuts and bolts (not incl.). Each compartment: 12w x 18d x 72h with hat shelf, coat rod. Three-point locking system provides security. (Cannot ship UPS.)