Future engineers build a lightning-fast race car powered by nothing but air... no batteries or electric motor required! Curious kids get hands-on w...
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What's cooler than building a bot? Building 8 of 'em! A 48-page, full-color book guides the assembly, and a compact solar panel gives them power. T...
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Speks are like magnetic putty, a stress ball and building blocks all in one. Now with a colorful matte coating! Made from rare earth, neodymium mag...
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Speks are like magnetic putty, a stress ball and building blocks all in one. Now with a colorful matte coating! Made from rare earth, neodymium mag...
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Speks are like magnetic putty, a stress ball and building blocks all in one. Now with a colorful matte coating! Made from rare earth, neodymium mag...
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