Gravitrax Expansion Building The striking appearance of this

The striking appearance of this boat is certainly eye-catching

the delicate action of counterweights

Delight in our iconic

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Gravitrax Expansion Building The striking appearance of thisTake your track to new heights with the GraviTrax Building Expansion set! The Building Expansion offers over 25 additional elements to expand your track vertically. Youll increase the action when increasing the height of your run. Experiment with the combination of height tiles, base plates, freefalls, switches and even another level. See how high you can build your track before getting the marbles to the finish. GraviTrax Starter Set required What