Detailed DescriptionThe 44-piece Twister Expansion includes two big orange vortexes. Marbles spin like planets orbiting the sun, and depending on speed they perform a circular or elliptical motion of varying duration and velocity. Up to three marbles can spin in the vortex at once, and watching them orbit is fascinating. The big orange vortex comes in two different variations: one with length-ways and one with cross-ways pillars, so you can construct the track any direction you like.
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