With GraviTrax you can explore gravity without ever getting bored, because the additional pieces allow you to expand your path to infinity. Throw the marbles upwards. Flip your marbles upwards with a 180 ° turn and energize your path. Use the Flip together with the GraviTrax Starter-Set to make the track even more fun and lively. How far will your marble go with the Flip? To be used only in conjunction with Gravitrax Starter Set.