The GraviTrax POWER elements Switch Trigger comprise a component for the Ravensburger marble run system with both electronic components. With the new GraviTrax POWER elements Switch Trigger, new possibilities can be discovered The elements communicate with each other via radio and are visualised by three colour channels. When a signal is sent from the trigger to the switch, the switch switches automatically. The player has more control over the course of the track. He can vary the paths of the ball through the track and thus significantly extend the running time of the track. Even more action, power and fun with GraviTrax