GraviTrax: Hammer Expansion

Quantity: Only 3 left in stock.




Nail your marble with the “GraviTrax Hammer” and propel fun to the next level!


Propel the marble through your run by adding the Hammer. When triggered, the hammer swings down and hits the marble, giving it momentum to send it on its way. This accessory also includes 6 additional tracks.

GraviTrax Starter-Set required


What makes a great toy? GraviTrax checks all the boxes! It’s a creative, modular, expandable track system that challenges children to use their imagination to design and build their own marble runs! Electronic-free, GraviTrax construction sets use STEM-friendly concepts while building critical thinking and problem-solving skills. Completely open-ended, every GraviTrax set has a boredom-busting variety of play options for hours of fascinating fun. Once the basics are mastered, simply add expansion sets and accessories to propel those metal marbles around the tricked-out track of your dreams!

Comes complete with 1 Hammer (easily assembled), 6 tracks (1 long, 2 medium and 3 short) and instructions.

Lasting durability for girls and boys ages 8 and up, it’s the learning toy children (and savvy adults) return to over and over again!



  • 1x Set of Instructions
  • 1x Hammer Tile
  • 1x Long Track
  • 2x Medium Tracks
  • 3x Short Tracks


Used with permission, copyright ©2022 GraviTrax/Ravensburger®. Copyright ©2022 Brey Corp. t/a Hobby Works.®

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