GRAVITRAX
GraviTrax is an interactive track system that kids can use to design and build marble racetracks, then launch the marbles to the finish line. Kids can test their track ideas in digital form using the free GraviTrax app before creating a track. GraviTrax is an interactive track system that kids can use to design and build marble racetracks, then launch the marbles to the finish line. Kids can test their track ideas in digital form using the free GraviTrax app before creating a track.
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