Fascinate your friends by completing an ordinary task in an extraordinary way with the LEGO® chain reactions book. Learn to build 10 LEGO® machines that can swing, pivot, roll, lift, and drop. Then connect, rearrange, and experiment with the machines to create a chain reaction. With this book in hand and a handful of basic bricks from your LEGO® collection, the only other thing you'll need is a little imagination.
Includes: 80-page book of instructions, 33 LEGO® pieces, Instructions for 10 machines, 6 plastic balls, string, and paper ramps.