Greenlee 4872 Flat Top Storage Box, 48-Inch By 72-Inch By 30-Inch Flat-top design provides more storage capacity for tall, bulky items Large work surface for jobsite plans Recessed and concealed lock protector inhibits forced entry and corrosion to lock Channel reinforcements on lid, lock side panels into lid for added security when closed Strategically located, easily accessible, durable gas springs provide for ease in opening lid