GraviTrax Extension - Color Swap

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Boost your GraviTrax circuits with this ingenious action block that will give the illusion of changing the color of a marble. By a clever sleight of hand, the ball goes inside the block and comes out in another color. An easy-to-master magic trick that is sure to have a spectacular effect in a GraviTrax marble run! This action block is played with at least one Starter Set and can then be combined with all GraviTrax elements.