GraviTrax PRO Accessory: Helix - Imagination Toys

Imagination Toys - St Louis, MO, When a marble enters the Helix it will move down to a lower level without changing its direction. Up to six marbles can pass through this Action-Stone at the same time!

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GraviTrax PRO: Helix, GraviTrax Accessories, GraviTrax, Products

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