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Different from classic Kinetic Sand
Hanayama is the world's finest and bestselling brain teaser collection
Designed with little hands in mind
Set contains 122 pieces
vehicles and more
GraviTrax Expansion Trax booster packs Different from classic Kinetic SandThe Extension Trax contains many different basic components and 6 balls to extend the ball track. Combined with any GraviTrax starter set, the Extension Trax 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