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$24.70
per keychain
Pi Key Ring
Qty:
Style
Aluminum Circle
+$6.45
+$6.45
+$31.65
+$31.65
About Keychains
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About This Design
Pi Key Ring
Love mathematics? Love pi! The Greek letter pi, defined as 3.141 (approximately) and terribly useful for working out the area of a circle. A top geeky t-shirt for lovers of maths.
Customer Reviews
4.6 out of 5 stars rating5.4K Total Reviews
5,436 Reviews
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5 out of 5 stars rating
By Ali Y.4 February 2026 • Verified Purchase
Metal Circle Keychain, 5.08 cm
Lovely & cute keychains i love them thank you sooo much ,they also reached to me soo fast 😍.
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5 out of 5 stars rating
By linda f.18 June 2025 • Verified Purchase
Premium Round Keychain, Small (3.65 cm)
So cute and this is perfect!!!
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By Anonymous22 September 2025 • Verified Purchase
Metal Circle Keychain, 5.08 cm
I went on vacation and family and friends want me to get them a key chain I was already returning home so I got it from zazzle there happy!!
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Other Info
Product ID: 146848591017848970
Posted on 14/05/2009, 11:04 AM
Rating: G
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