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Recommended for ages 8 to 14 years

PLEASE NOTE: GraviTrax® Starter Set is required and available separately.


GraviTrax® is a modular, electronic-free interactive track system where you can design and build your own marble runs. This STEM toy for kids encourages experimenting with gravity, magnetism and kinetics to propel your marble to the finish. Designed with open play in mind, the concept offers endless possibilities to design a different track every time you play.

Expand your builds and add some action with a variety of expansion sets and accessories.

Launch the marble through your run by adding the Magnetic Cannon. The high-powered magnet gives the marble speed to help extend your run by boosting it up inclines and down tracks. This accessory also includes 3 additional marbles.


  • Boost your GraviTrax® set with the Magnetic Cannon Expansion. When fully primed the Cannon will lever your gravity spheres across your track making your layout possibilities endless!
  • Reinforces strategic thinking, spatial reasoning and planning skills.
  • Builds STEM skills in experimenting with gravity, magnetism and kinetics.
  • Contents of the Magnetic Cannon expansion set include 1 magnetic cannon, 3 balls and instructions.
  • Contains small parts! Not suitable for children under age 3 years!
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