GraviTrax is the all new STEM track system from Ravensburger! Think of it as a next-generation marble maze for older players/builders. Use your imagination to build superb tracks and set the Gravity Spheres rolling! Start with the GraviTrax Starter Set (sold separately), then add one or more expansions like this one to increase complexity and play value.
Bridge track sections! Bypass large gaps with Bridges. Combine the Bridges with your GraviTrax Starter-Set for even more variety by interlinking track sections for really spectacular results. How many unique track designs will you create?