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Ages 9-14

A laboratory for hands-on STEM projects

We make science and engineering seriously fun.

Learn more about Tinker Crate from KiwiCo

We believe that STEM learning develops and inspires the next generation of innovators — from scientists, engineers, and leaders alike. The design of Tinker Crate reflects this — infusing STEM concepts into each crate's themes with enriching projects and activities that are accessible and fun for all types of learners.

How it works

  1. Pick a line.


    We offer projects for every age and interest!

  2. Delivered monthly.


    Choose your plan and the first crate ships in 2 days. Pause or cancel anytime.

  3. Serious fun!


    Our science and engineering projects inspire kids to become creative problem solvers.

Our customers love us!

4.7 stars

7,469 reviews

Awesome projects & more in every crate

Sample crate!


Build and fire a real, functioning trebuchet that launches a ping-pong ball up to 10 feet. Then experiment and explore the physics of slings, levers, and air resistance.

Sample crate!

Hydraulic Claw

Build with hydraulics! Hydraulics are used all over, from airplanes to factories to theme parks. Learn how to build your own hydraulic lifting claw and continue experimenting with bonus design challenges.

Sample crate!

Walking Robot

Use this robotics kit to build a walking robot. Play with mechanical motion through robot building and experimentation!

What you get Burst graphic
every month

Awesome projects

All the materials you need to build a creative, innovative, STEM project


Detailed step-by-step instructions

Tinker Zine magazine

Additional science content and activities

Video tutorials

Online tutorials with tips and tricks

Sample Tinker Crate contents
Young engineer with a DIY mechanical hand project from a Tinker Crate engineering box

The perfect STEM crate built for kids 9 to 14

Delivered every month and starts at $18.50 a month, with free shipping in the U.S.!

Over 30 million
crates of fun... and counting!

Check out #KiwiCo for tons more amazing creativity and serious fun.


What is Tinker Crate?

How are the crates designed?

What topics will be explored with Tinker Crate?

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Explore other lines from KiwiCo

Looking for KiwiCo lines for other ages and interests?

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Awesomeness for kids of all ages starting at $18.50

+ Free shipping within the U.S.

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7,469 Tinker Crate reviews

Neha B

My son was so excited and best part was he was able to build the crate on his own and happy with his accomplishment

Tinker Crate
Marilou J

the kids love the crates and they learn while playing

Tinker Crate
Shannon H

My son loves these, when nothing else keeps his interest

Tinker Crate
Linda C

My sons are really enjoying their crates. They are constantly learning something new and its hands on.

Tinker Crate
Kristin M

Sometimes I wish I could pick and choose the crate that is sent each month as there have been some my son loves and some he doesnt

Tinker Crate

Awards & press