building towers with 32 interlocking shapes - it looks simple

If you press the red button

check out tenzi

without instructions or adult assistance

The easy-to-use controller features two forward speeds

Gravitrax: Jumper Accessory tgtgho25pg28-29 building towers with 32 interlockingSpring 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