Product description
Build one thing that leads to another.. and another.. and another
Your supply a pile of Lego bricks from your collection. We supply the know-how and the extra parts you need to transform your bricks into 10 wacky chain reaction machines.
Contains:
* Super-clear instructions
* Open-ended creativity
* Hands-on learning
* Skills to build on
* Everything you need
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Klutz
Lego Chain Reactions
$21.95