GraviTrax: Building Construction Amanita keeps it cool and

Amanita keeps it cool and collected amongst all the other crazy party pals around

Easy and hard levels keep kids interested and challenged - while of course having fun

A pair of dolphins leap through the waves in tandem

sand timer

GraviTrax: Building Construction Amanita keeps it cool andThe Extension Building contains many different basic components to extend the marble run. Combined with any GraviTrax starter set, the Extension Building brings even more variety and ball fun to the GraviTrax universe. How much longer can the ball roll with the new elements? GraviTrax is a flexibly expandable, interactive marble run system for children aged 8 and over: With GraviTrax, children, teenagers and adults don't just build simple marble runs.