100% Klutz Certified / Lego Chain Reaction
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Build one thing that leads to another... and another... and another with this great book/kit from Klutz! Using Lego bricks from your own collection and the extra parts included with this book your can transform your bricks into 10 different wacky chain reaction machines. You can combine these machines in dozens of ways, making chain reactions invented at Klutz Labs - or new and awesome chain reactions of your own invention.
Contains a 78 page book of instruction and inspiration
33 Lego elements, 6 Lego balls, 2.2 yards of string, 8 paper ramps, 2 paper pop up signs, 1 paper funnel, 1 paper bag, 1 paper bucket and one platform.
Recommended for ages 8 & up.