Gravitrax Power Element Remote Expansion Set

The interactive marble run system from Ravensburger. The electronic elements are wirelessly connected to each other. The player controls the course of the track with the POWER controller; which POWER element do you want to activate? With the GraviTrax® marble run system, you can discover gravity through play, and with various expansions, it can be enlarged for limitless building and playing fun! Add even more speed with the expansion sets.