Put Science to Work and Engineer Amazing Projects
Tinker Crate and Eureka Crate apply the principles of STEM concepts to make learning seriously fun!
Click on one to learn more
Tinker Crate
for ages 9-14
Eureka Crate
for ages 12-100
Designed by Experts, Tested by Kids
Hands-on learning
Inspired by STEM (Science, Technology, Engineering, and Math) concepts.
Convenient
Everything needed to build, explore, and learn — delivered.
Creative
Encourages a tinkering mindset.
Functional
Create real, functional objects that you’ll love to use every day.
Tinker Crate
Tinker Crate encourages hands-on learning and experimentation in science and engineering for kids between 9 to 14.
What's Inside Tinker Crate
Sample crate!
Trebuchet
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!
Eureka Crate
Eureka Crate teaches how to apply the principles of science and math to the design of everyday items for kids (and kids at heart!) between 12-100.
What's Inside Eureka Crate
Sample crate!
Articulated Desk Lamp
Engineer a cool cantilevered lamp that uses pulleys and springs to make it perfectly adjustable, and explore mechanical equilibrium and materials science. Comes with an energy-friendly LED bulb and three lampshade color options.
Sample crate!
Electric Pencil Sharpener
Wire up an electromechanical pencil sharpener with automatic pencil detection, and explore electric motors and torque. Comes with a pencil set and notebook to jot down your ideas and inventions.
Sample crate!
Wooden Ukulele
Build a real four-string concert ukulele and explore the science of sound waves. Discover the design history of this classic Hawaiian instrument and learn to play some sweet tunes.

Looking for KiwiCo lines for other ages and interests?
Inspiring the next generation of innovators
Check out #KiwiCo to see young scientists, engineers, entrepreneurs, and artists in action!
FAQ
What is Tinker Crate?
What is Eureka Crate?
Which line is appropriate for my child?