Experience the power of gravity! GraviTrax is the all new STEM track system from Ravensburger! Use your imagination to build superb tracks and set the gravity spheres rolling! Scoop to hoist your marble to the track above and extend your run. Combine the Scoop with the GraviTrax Starter-Set and keep the marble rolling for more action, heights, and speed. How long can the Scoop keep your ball rolling?