Spiral Tower is a compact masterpiece of mechanical design. A motor-driven paddle lift carries marbles up the tower while a helical chute delivers them back to the base, a continuous loop that runs as long as you let it.
Built from 201 laser-cut wooden pieces, the tower assembles without glue using precision-fit joinery. Every gear, every axle, every chute is part of the motion. There is no decoration here, only function. 4 to 5 hours of screen-free flow state, challenging enough to feel earned and quick enough to finish in a single sitting.
The motor and battery case are in the box. Batteries are not included.
