With over 100 pieces and 18 different construction elements, the GraviTrax Starter Set offers everything you need to begin building your own action-packed track systems. Discover how the laws of physics affect the journey your marble takes with curves, junctions, freefalls and even a cannon. Experiment using different heights and angles to control the speed of the marble to get it to the finish.
EXPANSION SETS AVAILABLE! Looking to expand or extend your marble run? The Trax and Building Expansion Sets help you do just that. Combined, these expansion sets offer over 70 additional elements to add more levels to your track or to make your track longer to keep the marble rolling.Age: 8 - 108