This compact tabletop rolling ball sculpture features a helical lift positioned in the center of the piece. The lift continuously carries the marbles back to the top, where they are distributed among three different tracks.

Along the way, the marbles encounter three flat spirals, a loop-d-loop, a tall skinny spiral, and a tipping arm. Long sections of track wrap around the lift and other elements, giving the marbles plenty of movement as they make their way back toward the bottom.

Its compact size makes #342 a great desktop or tabletop sculpture, with plenty of action packed into a relatively small footprint.