Ages 9-16+

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

5,340 reviews

What’s Inside Tinker Crate

Sample Crate!


Engineer a hand-cranked, wooden automaton that makes a marble climb stairs. Explore the gears and cams that make the mechanics work.

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

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 16

Delivered every month and starts at $16.95 a month, with free shipping in the U.S.!

Over 20 Million Crates of Fun... And Counting!

Check out #KiwiCo for tons more amazing creativity and seriously fun science projects for kids.


What is Tinker Crate?

How are the crates designed?

What topics will be explored with Tinker Crate?

Explore other lines from KiwiCo

Looking for KiwiCo lines for other ages and interests?

Learn more ➜

Let's get started!

  1. Pick a line

    Tinker Crate (Ages 9-16+)

  2. Subscription length


    Subscriptions renew automatically. All prices in USD. Cancel anytime.*Compared to Store price ($24.95 + $4.95 shipping/delivery).
  3. Personalize it


5,340 Tinker Crate reviews

Cara W
Apr 13 2020

These boxes every month exceed my expectations. I have two boys and the each have a subscription and look foward to every month and as soon as they recieve it they sit down and put it together no matter hown long it may take. My youngest son gets the Tinker create and at the beginning I was needing to walk him through step by step but now he can assemble it independently. Cannot say enough about this product. Best Christmas gift and money spent

Tinker Crate
Traci H
Apr 12 2020

My daughter is 10 and we have tried different boxes: Little Passports, Steve Spangler and she was bored after a couple and wasn't excited each month. But now she gets a Tinker box and can't wait to open it. Then she constantly asks as soon as the month starts when is her next box coming!

Tinker Crate
Lauren W
Apr 13 2020

The boxes are like a birthday gift every month. Now that my granddaughter has put a few together with her dad, she is now able to follow the directions and do them by her self.

Tinker Crate
Ronald L
Apr 13 2020

My son loves his kiwi crates. It starts with him receiving a package once a month and the challenge of creating the activity.

Tinker Crate
Vicki D
Apr 13 2020

My kids look forward to getting their box each month!

Tinker Crate

Awards & Press