GraviTrax Extensions

Discover our range of GraviTrax-compatible extensions: mega spinning tops, zigzag rails, pillars, bridges and much more to enrich your marble runs. Every part is 3D-printed in bio-based PLA less than 40 km from Grenoble, France, and tested by our own children before going on sale. These extensions complete your GraviTrax set and open up new layouts without buying a whole new box. French handmade production, protected letterbox-size shipping, free delivery in France.