This game applies the law of gravity. The wire tracks require kids to continue testing and adjusting their assumptions as they build their own amazing marble passages. Too flat, the marble won't roll; too steep and it will fly off the track. Designed to foster children's creativity, patience and hand skills. The motorized elevator will make the marbles run over and over again. Start the elevator, and watch the marbles as they reach the top and then make their way through the passage you have constructed

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