Three interlocking gears sit stacked at the heart of this build, carrying marbles upward before releasing them into a multi-level chute run that winds down through bowls and rails on either side. A busy, layered mechanism with plenty happening at once — a real centrepiece for anyone who loves watching gears at work.
Display case optional. Hand-finished in solid natural wood. No glue required. Recommended for builders aged 8+.
