GraviTrax Expansion Building Flying Model Rocket Flyi holiday or any-other-day surprise for

holiday or any-other-day surprise for kids aged 6 and up

(doll not included)

An ideal companion from waking to sleep

men and adults ages 18 and up

The nickel Apache can reach over 900 feet

GraviTrax Expansion Building Flying Model Rocket Flyi holiday or any-other-day surprise forThe 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.