Listing: GraviTrax PRO Ravensburger Vertical Starter Set STEM Toy Age 8+ Used STEM Marble

This set inspires creativity & problem solving. With more than one way to assemble the marble riding tracks, there are countless designs that could be created. 

There is a manual that comes with the set. Also, there is also an app that can be downloaded.

If there are any questions, please contact me and I'll answer them as quickly as possible. 

Thank you for viewing and Happy Bidding!