GraviTrax® Expansion: Lifter WINPOS_Dolls-Barbie The gardeners earn points for

The gardeners earn points for finding raccoons

Put your trivia knowledge to the test as you recognize words and call them out

trace and fill in pictures with tons of colorful sticky papers and 8 chunky crayons

Intricately illustrated

Each on sold separatley

GraviTrax® Expansion: Lifter WINPOS_Dolls-Barbie The gardeners earn points 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.