What you get – the gravitrax lifter comes with 27 pieces, including 1 lifter action tile, 7 silver marbles, 1 transparent level, 8 large height til...
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The Gecko Run Starter Set includes everything you need to zip, zag, bounce, skip, and hurdle into an awesome engineering adventure. A 16-page illus...
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With the Gecko Run: Twister Expansion Pack, you can give your marbles a real spin. This not only brings extra fun to your Gecko Run marble run, but...
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The Gecko Run Starter Set includes everything you need to zip, zag, bounce, skip, and hurdle into an awesome engineering adventure. A 16-page illus...
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WELL DESIGNED CONTRAPTIONS: Q-Ba-Maze Rails employs snugly fitting, non-warped pieces that don't have breaks or skips, meaning the ball will never...
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