Split the directions of the marbles with the Splitter. See if the marbles have enough speed to roll across the trap door. If they roll too slow, the marbles will fall to awaiting tracks below and will go in different directions. Any Gravitrax Starter-Set required. The GraviTrax track system can be extended indefinitely with extra track packs and add-on’s – each sold separately. Suitable for ages 8 years and up.
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