GraviTrax

Use your imagination to build action-packed tracks and set your balls rolling with GraviTrax by Ravensburger.  Begin with the Starter Kit and use the 100+ components to design an action-packed interactive course for your marbles!  This STEM system is ideal to teach kids about gravity, magnetism, kinetic energy and fun.  Various add-ons/expansions allow you to extend your GraviTrax marble track system for endless building and racing fun!  Here at Presents of Mind you’ll find the Start Set and many of the Expansions in our Engineering & Construction range.