Knowledge Base.

US Shipping Services

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Modular Robotics ships via UPS or USPS within the United States when you select our ‘Free Shipping’ option. Free shipping is available for domestic orders over $50 only. PO Boxes and APO/FPO addresses must be delivered via USPS. Please note that UPS will not deliver to these types of addresses.

Expedited shipping is available for an additional cost. Expedited options for your order are UPS Second Day Air (2 transit days), UPS Next Day Air Saver (1 transit day/later in the day) and UPS Next Day Air (1 transit day by noon).

Once your order has shipped, you’ll receive a shipping confirmation email with tracking information. Please know that we do not accept C.O.D. orders. If you believe your package was lost, stolen or eaten by a bear during transit, please contact us at

Shipping and handling charges are nonrefundable. Please note that we are not responsible for shipping charges on merchandise being returned to us for a warranty replacement or return.

Still have questions? Please contact us at

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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. 

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At Home.

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

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