Four 12" square sections

for ages 13 and up

building towers with 32 interlocking shapes - it looks simple

As the months pass

refreshed Wheels feature rubber tread

Gravitrax: Jumper Accessory tgtgho25pg28-29 Four 12" square sectionsSpring your marble to the track above with the GraviTrax Jumper and keep the action hopping! Move up a level! The Jumper lifts your marble to a higher level and at the same time creates a transit tunnel. Combine the Jumper with your GraviTrax Starter Set for an exciting addition to your marble run. Can you get your marbles jumping? What makes a great toy? GraviTrax checks all the boxes! It's a creative, modular, expandable track system that challenges