How it's made. Printed in PLA, no supports: the base, the lid (with the name inlaid flush in its front), a carry handle that presses into two bossed holes in the lid top, a hinge pin, and your dividers. Lid and base carry interlocking knuckles along the back — the pin slides through and the lid swings open past upright. The front latch is a flexible tab on the lid that clicks over a ridge on the base. A lip inside the rim keeps the closed box aligned and dust-tight, and paired ribs up the inside walls take a divider at any of four positions. The full size swallows a socket set, a drill's bits and a tape; the compact size suits hand tools and hardware.