The Top Box Tool Tray is a must have for automotive mechanics, body shops, aviation / marine technicians, woodshops, and anyone else looking to keep their projects organized. The Boltster Top Box Tool Tray eliminates the issue of misplaced bolts and fasteners. This means no more cups of bolts or sandwich bags labeled with all your fasteners. No more guesswork when reassembling a project. No more cardboard bolt diagrams. No more time wasted or anxiety from misplacing the fasteners you need.