Skip to content
Create wonderful things. Be yourself. Have fun!
Klutz, 100% Klutz certified
Klutz LEGO Chain Reactions

LEGO & STEAM Kits · Ages 8+

Klutz LEGO Chain Reactions

Do something ordinary in an extraordinary way

4.5 (23,415 ratings)

Build ten LEGO machines that swing, pivot, roll, lift and drop, then link them into one long chain reaction.

$27.98at our last check

The listing shows today’s price and delivery.

  • Ten machines, each with a different way of passing motion along
  • Connect, rearrange and experiment to design your own sequence
  • Works with a handful of basic bricks from your own LEGO collection
  • Our most-reviewed kit, by a wide margin

Notes from the people who made it

The goal is gloriously pointless: ring a bell, drop a ball in a cup, in as many steps as possible. Getting there takes real engineering, and a lot of resetting.

Once the ten builds make sense, the book gets out of the way. The best chain reactions are the ones you redesign after the third failure.

LEGO Chain Reactions$27.98 at last check · ages 8+

Next to it on the shelf

LEGO Race Cars

Ages 8+ · 10 cars and a track

4.4 (2,464)

$23.99