Description:

• [Gravitrax POWER Starter Set XXL] Go bigger and better and build signal-controlled, mega-sized marble runs with the GraviTrax POWER Starter-Set XXL! Set includes 142 pieces for longer play time!
• [BECOME A PROGRAMER] Now you can control the marble by programming the electronic elements, that communicate through invisible connections created by players controller.
• [INNOVATIVE]: The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with gravity, magnetism, kinetics and now POWER your marbles to the finish.
• [STEM TOY] Boys and girls ages 8 and up can experience educational and science play- over 15 million sold worldwide. All sets are compatible with GraviTrax, and GraviTrax PRO.
• [Great Gift] GraviTrax is an a ideal holiday and birthday gift for creative, curious kids who love to build.