Vertical louvers provide ventilation. Full-length door stiffeners add rigidity & deaden sound when opening / closing. Padlock hasp on each door. Includes number plates for locker identification. Each compartment has hooks for hanging items. Two-point locking system provides security. Multiple rows of lockers can be ganged with standard nuts & bolts (not included). Triple StackSix lockers with tamper-proof hinges & vertical louvers. Configure with optional base (sold separately) to raise locker 6" off floor for easier access to bottom unit. Color: Medium Gray; Overall Width: 36"; Overall Depth: 18"; Overall Height: 72".