GraviTrax Pro Add on Splitter
Split the directions of the marbles with the Gravitrax Pro Vertical Splitter 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. Combine this Add on with the GraviTrax Pro Starter Set.