16 cubic feet of roof-mounted storage. Dual-side opening, locks securely, includes mounting hardware and one key. Front hinge is slightly bowed from years of enthusiastic overpacking but it still opens and closes fine. The 'Box is cosmetically rough--the front end has seen more bugs than a windshield in June, it's been bleached by the high desert sun over dozens of trips, and the whole thing could use a scrub. That said, it is structurally solid with no cracks or leaks. Warning: May contain the remnants of countless spider dynasties who lived and died never knowing the sun. (The box has been in storage for 7+ years; a good cleaning is recommended before use--or you can just embrace the ecosystem!)