Hypnotizing, Mesmerizing Fun -- Race the marbles down the spirals of the vortex. Race them alone or against friends. Discover and learn principles of gravity, acceleration, and centripetal force. The Marble Twister is made of non-toxic coated heavy gauge steel wire that will last for ages. Comes with 5 marbles. Measures 22" x 11" x 8" on wood stand.

$39.95

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SKY ATLAS DELUXE EDITION - LAMINATED MARBLE TWISTER

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