Description
Experience the power of gravity! GraviTrax is the all new STEM track system from Ravensburger! Use your imagination to build superb tracks and set the gravity spheres rolling! Create the element of surprise! Use the Tunnels to hide the marbles as they travel through your track. Combine the Tunnels with your GraviTrax Starter Set (sold separately) for added mystery to your track. Will you be able to keep your eye on the marble as it rolls through the tunnels?
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