GraviTrax: Building Construction Meets FDA specs for food

Meets FDA specs for food contact

Scratch & Sketch Things That Go

Measures approximately 27 x 19

sand timer

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

GraviTrax: Building Construction Meets FDA specs for foodThe 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.