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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
(32 cm) long and 9 in
Equipped with recommended C6-3 and C5-3 engines
• Paint is safe
intuitive building adventure on the LEGO Builder app
and visual perception
GraviTrax Lift flexible logic game (32 cm) long and 9The 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.