Gravitrax Tunnels Expansion


GraviTrax is a unique marble-run system featuring hexagonal risers and track tiles that simply fit and stack together, rail-tracks that hook into place, and stunt pieces that add exhilarating twists and turns.

And with this expansion set - full of unique curving tunnels, drop tubes, and more - Those twists and turns become even more exhilarating!

  • Recommended for ages 8 years+.
  • Expansion for the Gravitrax Starter Set.