With the GraviTrax Trampoline expansion from Ravensburger, you bring dynamic jumps to your marble run. The rolling marble hits the trampoline and bounces through the air to the next section of the track. This set contains two trampoline action tiles as well as two height-adjustable angle tiles, allowing you to precisely align the angle of inclination and flight trajectory. A GraviTrax Starter-Set is required for use, as the expansion elements are integrated directly into the existing track system. This opens up new possibilities for dynamically overcoming height differences and experimenting with physical principles while building.