GraviTrax Dipper marble run Patented Pop-a-Tronic technology lets kids

Patented Pop-a-Tronic technology lets kids discover different popping sounds by poking the dots from the front or the back

each of which can be turned on and off

Through the tunnel lies the dockyard where you can load cargo before returning to the station

pull the handle back

GraviTrax Dipper marble run Patented Pop-a-Tronic technology lets kidsDip down from one level to the next! GraviTrax is a unique marble run system featuring hexagonal risers and track tiles that simply fit and stack together, rail tracks that hook into place, and stunt pieces that add exhilarating action. One marble acts as a weight while the bucket waits at the top for another marble to come rolling in. Once it does, it swings down, drops it onto the lower track, and then swings back up to collect another. Meanwhile,