GraviTrax Spiral Expansion Pack
GraviTrax is the all new STEM track system from Ravensburger! Use your imagination to build superb tracks and set the Gravity Spheres rolling!
Get your marbles spinning!
With different height possibilities, you can configure the Spiral to take the marbles on a dizzying journey from one level to another. Combine the Spiral with your Gravitrax Starter Set for even more action and excitement.
* Only playable with the Starter Set.