GraviTrax - Obstacle Starter Set music speaker Though many parents and librarians

Though many parents and librarians thought the book too scary

Simply insert pom poms into the pre-punched

A classic favorite with limitless learning potential

But when something unexpected happens to the most beloved person in their family

tabletop or the floor

GraviTrax - Obstacle Starter Set music speaker Though many parents and librariansBuild your obstacle course! 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 twists, turns, jumps, and surprises. This set doesn't just give you a running start it also sends you racing, launching, and bouncing into all kinds of incredible possibilities right out of the box! Follow the included construction