The stiffness and quality of the plastic used in this box are vast improvements over their Chinese counterparts. It's more easy to use a flat box and put one pyramid of two or three boxes in the closet than to stack luggage with a puncher, drill, screwdriver, grinder, and jigsaw, so I'm considering buying another one or two of these for electric tools. If I can find a good deal on files, drills, and dowels, I can even store them in individual compartments.