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  • Marble Race Starter Set by GraviTrax® - 1
  • Marble Race Starter Set by GraviTrax® - 2
  • Marble Race Starter Set by GraviTrax® - 3
  • Marble Race Starter Set by GraviTrax® - 4

5 avg. (3 reviews)

Marble Race Starter Set

Build, configure, and perfect a marble run ┃Expansion sets and accessories amp up the fun

The GraviTrax starter set is the perfect rolling, spinning, racing, and jumping-off point for kid engineers. The marble run building set has over 100 pieces and nine construction plans to put into action, or kids can create their own signature twisting and turning race track while honing early STEM skills with concepts like gravity, trajectory, and force.

  • See instructions for more information
  • Please note: Choking hazard. Keep out of reach of children under three
  • Made in Czech Republic




Construction plan booklet, task booklet, four base plates, two transparent levels, six balls, forty large height tiles, twelve small height tiles, twenty-one curves, three junctions, two switches, one 3-in-1 block, one vortex, one launch pad, one magnetic cannon, three long tracks, six medium tracks, nine short tracks, one finish line, four basic tiles, inserts for basic tiles: two catchers, one freefall, one splash, one landing


13" x 13" x 4"


4.1 lbs


Track system: Plastic; Marbles: Metal



With over one hundred pieces and nine potential construction plans (plus whatever little engineers dream up on their own), the GraviTrax marble run set provides endless building, reconfiguring, and racing good times. It draws on STEM skills by giving kids hands-on experience with concepts like gravity, magnetism, and kinetics, and there’s some creative thinking needed, too—not that they’ll notice that. Kid builders will be too busy experimenting with height and trajectory and perfecting their twisting and turning race course. Expansion sets let a race track reach a grander scale, and accessories like a trampoline and cannon amplify the fun.