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<http://schema.org/reviewBody>
"Our Grandsons love a good challenge, but found construction sets frustrating. Parts were colored , but directions were black and white...lots of tiny pieces."
<https://www.mindware.orientaltrading.com/engino-deluxe-engineering-kits-set-of-2-a2-13764623.fltr?categoryId=554251+2320+2316>