Marble Machine Racer

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Highlights Marble machine components Comic book guide This is one seriously cool way for a child to learn all about science with the Marble Machine Racer. Construct your very own m arble machine and let it loose after following the detailed instructional comic. By turning a manual into a comic, children will easily be able to follow the detailed step by step instructions while staying invested. This is an easily constructed and straightforward design and application which will keep children entertained for a long time. Information Product Dimensions: 4 x 3 x 1 inches Item Weight: 3.98 ounces Manufacturer Recommended Age: 10 years and up Show more