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$17.30
per keychain
Euler's Identity Key Ring
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Style
Aluminum Circle
+$4.55
+$4.55
+$22.20
+$22.20
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About This Design
Euler's Identity Key Ring
Euler's Identity is considered by many to be remarkable for its mathematical beauty. These three basic arithmetic operations occur exactly once each: addition, multiplication, and exponentiation.
Customer Reviews
4.6 out of 5 stars rating5.6K Total Reviews
5,607 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars ratingBy T.29 May 2025 • Verified Purchase
Metal Circle Keychain, 5.08 cm
A huge big THANK YOU to the designer Little Linda Pinda. This was a special order and it turned out so lovely. Very happy. And the delivery was super quick too.
5.0 out of 5 stars rating
5 out of 5 stars ratingBy cindy t.8 November 2023 • Verified Purchase
Metal Circle Keychain, 5.08 cm
Zazzle Reviewer Program
Product quality is great, art work is perfect.
Would highly recommend.
Fast turn around, I was surprised they arrived so quickly, as I had a fairly large order. Perfect, centred and exactly what I wanted
5.0 out of 5 stars rating
5 out of 5 stars ratingBy T.29 May 2025 • Verified Purchase
Metal Circle Keychain, 5.08 cm
A huge big THANK YOU to the designer Little Linda Pinda. This was a special order and it turned out so lovely. Very happy. And the delivery was super quick too.
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Product ID: 146171782207836663
Added on 21/11/13, 1:41 pm
Rating: G