Ravensburger gravitrax element switch trigger expansion set

The interactive bullet track system from Ravensburger. In this set you get the separate power elements from the starter set switch. You can build the trigger at any place in the track to activate the switch. This way the next bullet goes along another track! This set of course also works together with all other Power elements, for even more action in the track. With the GravitraX® Ballbaan system you can playfully discover gravity and with various extensions it can be enlarged for boundless construction and playing pleasure! Add even more speed with the expansion sets.