Mechanical-puzzle-box -

: Internal gears or dials that must be aligned to a specific "code" or orientation.

: Modern boxes often include "tools" (like a hidden key or a metal pin) found in the first few steps that are necessary to solve the later stages. 3. DIY and Construction Materials mechanical-puzzle-box

While high-end boxes are made from exotic hardwoods, many hobbyists use accessible materials for prototyping or entry-level builds: : Internal gears or dials that must be