SKU: 79944286524

Roman Arch STEM Box (Ages 5 & Up, With Adult Supervision)

Sale price$24.25 Regular price$26.95
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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

Roman Arch STEM Box (Ages 5 & Up, With Adult Supervision)Amazingly Easy to Build yet Very Strong! Most people have heard of the famous "Roman Arch." You can see them in great architecture such as the Colosseum in Rome and bridges and other vital infrastructure around the world. For most people in Canada, however, they are something foreign and ancient. Ask the average person in North America: "Have you ever built a Roman Arch"? The answer for virtually all of us is no. With this STEM Box, we aim to change

Amazingly Easy to Build yet Very Strong!

Most people have heard of the famous "Roman Arch." You can see them in great architecture such as the Colosseum in Rome and bridges and other vital infrastructure around the world. For most people in Canada, however, they are something foreign and ancient. Ask the average person in North America: "Have you ever built a Roman Arch"? The answer for virtually all of us is no.

With this STEM Box, we aim to change that. Stop missing out. Build your own Arch!  We supply everything you need. It's remarkably easy to do with the materials supplied in this STEM Box:

(1) Correctly shaped and pre-made "voussoirs" (stones) (plus we add two extra for a total of 11)*;

(2) A simple, pre-assembled wooden frame that provides abutments on both sides to support the arch;

(3) A centring - in the form of 2 quarter-circles (the temporary structure upon which you lay the stones of the arch during construction); and

(4) An informative and proprietary S.T.E.M. Store of Canada information sheet that provides step-by-step instructions and additional background information on arches and how they work.

We make all of these STEM Boxes by hand in Canada and perform quality checks on each one to ensure that they assemble easily and accurately.  We have used very safe materials in preparing these STEM Boxes (wood, school-safe glue, etc.).

Recommended for Age 5 & Up (with adult supervision).

Notes:
(1) The stones included with this STEM Box are all identical. Any one of these stones may function as the famous “Keystone” (being the final piece placed during construction that locks all the stones into position, allowing the arch to bear weight)!

(2) The Loonie coin (not included with the STEM Box) is displayed in some of the pictures to give you a sense of the size of the Arch.

(3) We tried placing a 15-pound weight on top the arch - it held it up no problem (you can see there was no cheating involved)! Can you do the same? Maybe you can achieve even more weight?

For excellent overviews of how arches work, check out these YouTube videos:

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79944286524

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CerisK
Bozeman, US
★★★★★ 4
Decent 3oz measurer
Color: Black, Color: Black
I like it, it works. However it is a bit heavy on the handle side. You think somebody like maestri house would get it correct. Could have used heavier metal on the measuring cup. Anyways I keep it it's nice.
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Reviewed in the United States on January 12, 2026
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Irishjude
Battle Creek, US
★★★★★ 5
Expresso
Color: Silver
I like it. Each coffee perfectly measured
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Reviewed in the United States on January 25, 2026
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William Cummins
Omaha, US
★★★★★ 5
Very useful
Color: Black
Very useful addition to my expresso brewing
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Reviewed in the United States on January 23, 2026
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Big Foot
Pawtucket, US
★★★★★ 3
Needs to be a little larger for two shots
Color: Silver
Nice quality but overflows with two shots of espresso from my machine.
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Reviewed in the United States on January 13, 2026
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M. Altvater
New York, US
★★★★★ 5
Coffee!
Color: Silver
Holds coffee, looks nice
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Reviewed in the United States on October 19, 2025

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