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Learning about gears, levers, pulleys, wheels, bridge architecture, motorized machines, and amusement park physics has never been easier or more enjoyable than with these special K'Nex models. The small kits demonstrate simple machines with 200 or more snap-together pieces that can be used to make at least 6-8 working models, while the larger kits have thousands of pieces, enough to build several models simultaneously. These are ideal for classrooms or for kids who enjoy hands-on learning. Made in U.S.A.
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