This is a Cubelet.

It’s a robot block.

Combine Cubelets to create robot constructions.

There are thousands and thousands of possibilities.

Educators around the world love teaching with Cubelets.

We think you will too.

That's why we want you to try them for free.

Open to all US teachers.

Want to know more about Cubelets?

Cubelets are robot blocks that help teach important problem-solving skills – like collaboration, engineering, design, and computational thinking. 

Play Video

The fast and easy way to build robots.

Cubelets are the only way to build a robot made of a bunch of smaller robots.

Designed to meet you where you are.

Cubelets are versatile. They're used by Pre-K explorers and PhDs.

Loved by educators everywhere.

Find Cubelets wherever learning happens–class, camp, museum, & home.

Learn the biggest lessons from little things.

Cubelets are used to help teach the skills needed to solve life's biggest problems.

Just like building blocks, only smarter.

You’ve never built with blocks like these. Cubelets are the only way to build a robot where you build with a bunch a of tiny robots. 

Combine the 17 unique kinds of Cubelets in different ways to create countless robot constructions. Every design is a new robot construction and it all starts when you combine the three basic categories of Cubelets.

There are three types of Cubelets - SENSE, THINK, and ACT.

Want to know more?

Explore how Cubelets work with the Getting Started Guide. Or check out some robot ideas to see what you can build.

Great for... everyone.

Cubelets are for anyone ages four and up. Don’t let their age-friendly rating fool you! Cubelets are easy to start and grow more challenging as you learn more.

Easy, to start.

Cubelets’ unique design makes robot-building simple. Their size and magnetic connections are perfect for users of all skill levels. No need to code – the behavior emerges from your construction.

If you can build with blocks you can build with Cubelets. 

Build thousands of robots with Cubelets robot blocks.

Then, simply complex.

The more you discover about Cubelets the more complex they become.

There is always something to learn and discover with Cubelets. When you’re ready, free Cubelets apps help you change how any Cubelet behaves. Endless possibilities.

Data Logger.

Learn how Cubelets “talk” by visualizing block values or save the data for analysis.

Personality Swap.

Discover how swapping a Cubelet’s Personality changes the way it behaves.

Blockly Coding.

Build new Cubelet behaviors with drag-and-drop programming.

C Coding.

Build new Cubelets programs with text-based coding.

Loved by educators from Vermont to Vietnam.

You’ll find people who love Cubelets everywhere from camps to museums, makerspaces, classrooms, and living rooms.

Cubelets robot blocks are designed to inspire and intrigue – which makes them an excellent teaching tool. 

The impact of Cubelets on my students constantly exceeds my expectations. I want a way to level the playing field for students to collaborate, extend the concept of coding… and to engage struggling students to make learning fun and exciting. Cubelets helped with all of these goals and I haven’t even begun to scratch the surface yet.
Barbara G.
Jefferson County, CO
Tested with over 150,000 kids at international and national museums, Cubelets have proven to be a visitor favorite that provides an introduction to simple robotics and logical thinking. When you add that to great customer support, provision of educational resources, as well as a good product warranty, Cubelets have become one of our ‘go to’ installations in digiPlaySpace.
Suzan S.
Toronto International Film Festival

Support comes standard.

Cubelets are more than amazing robot blocks – they’re an entire system designed to help you teach and learn.

Cubelets are supported by:

Or get everything you need to bring Cubelets to your classroom with a Cubelets Lesson Plan Bundle.

Explore the educational resources or check out the administrator checklist to see how Cubelets have you covered.

Little robots, big lessons.

Cubelets teach everything from design thinking to engineering, collaboration, complexity, math, and more. Even advanced ideas like abstract modeling, systems thinking, and emergence can be explored with these deceptively simple robot blocks. Cubelets help you build better thinkers.

Pre-K – 2nd Grade
 2nd – 5th Grade
5th Grade +

How it works.

Request a kit.

Complete the form to request a review kit and we'll be in touch to finalize your shipment.

Experiment for 10 days.

Explore Cubelets during a simple risk-free trial.

Try the free resources.

Don't forget to check out the free lessons and resources on!

Send Cubelets back.

Send your review kit back using the prepaid shipping label.

Please complete this form to request your review kit.

Terms and Conditions:

Cubelets review kits are only available to educators in the United States. 

Cubelets review kits are intended for educational purposes only and are not available to resellers or consumers. This product is being loaned to you for trial purposes only. If the product is not returned within 30 days of receipt, you will be charged the retail price of $399.


We’re here to help you get the most out of Cubelets. Send us a message to start the conversation!

What's on your mind?

Send us a note and we’ll be in touch about one business day. 


Frequently asked questions.

Cubelets FAQs is your place to find answers to common questions about Cubelets robot blocks, orders, and Modular Robotics.

Contact us.

Need help, can't find an answer? Contact the Modular Robotics support team and we'll help you!

Shipping and tax policies.

Get the details on Modular Robotics shipping policies and sales tax collection for orders in the United States and around the world.

Warranty and returns.

Cubelets are backed by a one year warranty. Need to make a claim, get a replacement, or have questions? Click to get started.

Cubelets Resources.

Everything you need to teach with Cubelets robot blocks.

Explore a huge collection of K-12 lessons, activities, guides, training, and more.

New to Cubelets?

Learn everything you need to know to start creating more with Cubelets robot blocks in this handy Getting Started Guide.

Go further with Cubelets apps.

Go beyond the building blocks and play with the code inside. Cubelets apps make it easy to create even more with your Cubelets.

Looking for some inspiration?

There are millions of robots you can create with Cubelets. Check out these robots to help inspire your inventions.

Shop Cubelets.


Cubelets robot blocks are used by educators all around the world to help students explore computational thinking, coding, and STEM. 

Jump to...

At Home.

Bring home the educational teaching tool loved by teachers everywhere. Explore sets designed for learning through play.

Jump to...