GraviTrax: Building Construction Easy and hard levels keep

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

so she was groomed to be a chef

Measures approximately 27 x 19

A pair of dolphins leap through the waves in tandem

A national symbol and until recently an endangered species

GraviTrax: Building Construction Easy and hard levels keepThe 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.