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In GraviTrax Set vs. Set, we compare the contents of GraviTrax marble run sets. In this episode, we compare the GraviTrax XXL …
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Buy these marble chimes on the Melodic Marbles Etsy Store: https://www.etsy.com/shop/MelodicMarbles More behind-the-scenes … source
Nice overview, thanks! Would have loved to hear your analysis about which is better for a first-time buyer.