C3 Pro STEM Coding Robot Kit
Harvard Avenue · Allston

Coding you can pick up and hold

Screen-free coding robots, app-controlled builds and 500-piece STEM kits — from a first sequence of arrow cards to Scratch and Python on a real controller.

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Coding robots and STEM kits153 Harvard Ave, AllstonOpen seven days a weekCoding robots and STEM kits153 Harvard Ave, AllstonOpen seven days a week

Age band and piece count

Both are on the listing, because a 538-piece kit and a set of arrow cards are not the same afternoon.

Screen-free where it exists

The starting shelf is deliberately tablet-free; the app-controlled kits are grouped separately so nobody buys one by accident.

Batteries and cables stated

What is in the box, and what you still have to supply, is written on the product page.

Inside Ritual Arts, Allston
How the shelf is ordered

A robot is only as good as its first ten minutes

The gap between a child who wants to code and a child who has coded is almost always the setup. Kits that need an account, a firmware update and a specific tablet lose the afternoon before anything moves. The shelf here starts with robots that work out of the box on arrow cards or a panel, and only then moves to the app-controlled and Scratch-driven builds, which are worth it once the idea has landed.

Questions people ask before ordering

How long will my order take?
Handling takes 1–2 business days and carrier transit is normally 3–7 business days, so most orders land in 4–9 business days. Tracking is emailed as soon as the label scans.
How much is shipping?
Orders of $75.00 or more ship free inside the United States. Below that, a flat $6.99 covers packing and carrier handling, whatever the box weighs.
Do you ship outside the United States?
Not at present. We ship to US addresses only, including Alaska, Hawaii and territories the carrier serves.
Can I pick my order up at the shop?
Web orders are shipped, not held for collection. If you want to buy in person, come to 153 Harvard Ave, Allston, MA 02134, United States during opening hours (Open Mon–Fri: 12:00–19:00 | Saturday: 11:00–19:00 | Sunday: 11:00–18:00.) and buy across the counter instead.
What can I pay with?
Checkout accepts Pay with cards and more, Card, WeChat Pay, Airwallex - Express Checkout, Klarna and Afterpay. Card details are handled by the payment provider and never stored on this site.
Can I return something?
Yes — unused goods, within 30 days of delivery. If the mistake was ours, we pay the return postage. Full detail is on the Refund and Returns Policy page.

New kits, occasionally

A short note when a robot or kit range changes. No weekly mail.