GraviTrax Starter Set

Ravensburger's marble run system combines STEM learning with the pure joy of watching a ball navigate an elaborate track. The modular hex-tile design lets kids build courses with loops, jumps, magnetic cannons, and free-fall drops. Every failed design is a physics lesson. Every successful run is a dopamine hit. The expansion packs are a genius monetization strategy, but the starter set alone provides enough pieces for hours of gravity-powered experimentation.