GraviTrax Pro Extension: Helix
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! This set is compatible with all GraviTrax & GraviTrax PRO sets ...
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and accessories. Experiment with gravity to power your ball through twists, loops and turns in a race to the finish line – great building game for boys & girls. A GraviTrax Starter Set is required to use expansion packs & accessories. Other accessories sold separately.
Age: 8+
