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LEGO Chain Reactions (Klutz Science/STEM Activity Kit), 9″ Length x 1.06″ Width x 10″ Height

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$20.79
Nappa silver award winner Design and build 10 amazing moving machines - teach your bricks new tricks Comes with 80 page instructions, 33 LEGO pieces, Instructions for 10 modules, 6 plastic balls, string, paper ramps and other components
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