4D Master Mini Maborun Tornado

4D Master MaBoRun Mini Tornado Building Kit, One Color 30222Send each marble up the corkscrew elevator where the flip flopper will send them to the cog wheel or the vortex track, that feeds back to the Corkscrew for endless fun. Each MaBoRun play set comes with its own unique tracks and obstacles. learn and observe mechanical and dynamic sciences with your friends and family. Colors may vary. Requires 1 "AAA" battery, not included.