Gravitrax Color Swap (Accessory)

Abracadabra, presto, chango — your marble run just added some colorful, magical fun with the "GraviTrax Color Swap" accessory! Bring a new element of surprise into your GraviTrax marble run! As if by magic, the marble changes color as it passes "through" the "Color Swap". Simply hide a marble within the tunnel — the momentum from the incoming marble propels the hidden marble out the other side with the illusion the marble changed colors! It's a snap to combine "Color Swap" with any "GraviTrax Starter-Set" to experience the power of gravity and educational fun today! What makes a great toy? GraviTrax checks all the boxes! It's a creative, modular, expandable track system that challenges children to use their imagination to design and build their own marble runs! GraviTrax construction sets use STEM-friendly concepts while building critical thinking and problem-solving skills. Completely open-ended, every GraviTrax set has a boredom-busting variety of play options for hour

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