GraviTrax | Marble Race Starter Set

Описание: https://bit.ly/2qRLqC3

The GraviTrax starter set is the perfect rolling, spinning, racing, and jumping-off point for kid engineers. The marble run building set has over 100 pieces and nine construction plans to put into action, or kids can create their own signature twisting and turning race track while honing early STEM skills with concepts like gravity, trajectory, and force.

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