Ravensburger GraviTrax 2022 Advent Calendar - Marble Run, STEM and Construction Toys for Kids Age 8 Years Up - Kids
[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.
