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$38.50
per keychain
E = mc² – Genius Mode On Key Ring
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Shape
Square (double-sided)
About Key Chains
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About This Design
E = mc² – Genius Mode On Key Ring
Make a bold statement with this E = mc² typography design, inspired by the most famous physics equation in history. Featuring a clean yet striking red and white text on a black background, this design is perfect for science lovers, physics students, teachers, engineers, and geeks who appreciate smart and minimalist aesthetics.
Ideal for t-shirts, stickers, posters, mugs, and more — whether for school, work, or everyday wear. A great gift idea for STEM enthusiasts, nerd culture fans, and anyone who loves science-inspired art.
Customer Reviews
4.8 out of 5 stars rating1K Total Reviews
1,009 Reviews
Reviews for similar products
5 out of 5 stars rating
By MISS S.26 August 2020 • Verified Purchase
Acrylic Keychain, Square (double-sided)
Zazzle Reviewer Program
Beautiful, amazing. Came on time as I always order things at the last minute!! For a ultrasound picture it came out amazing
3 out of 5 stars rating
By Kim K.28 March 2026 • Verified Purchase
Acrylic Keychain, Square (double-sided)
The picture was nice but didn't come with the key chain part, disappointed. .
from zazzle.com (US)
5 out of 5 stars rating
By Melissa W.26 December 2014 • Verified Purchase
Acrylic Keychain, Square (double-sided)
Zazzle Reviewer Program
This key chain was totally worth getting. It was bigger than I expected but not over-sized. Great quality.
Could be given as a gift for any occasion ... just order with the pictures that you want the other person to have. Personally, I bought one for myself, one for my mom (for her birthday). I was satisfied with every thing about this. Excellent quality pictures, durable, looks really nice.
from zazzle.com (US)
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Product ID: 256715433525787009
Added on 11/2/26, 2:49 am
Rating: G
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