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$20.10
per keychain
Optical illusion: penrose triangle key ring
Qty:
Style
Aluminum Circle
+$5.25
+$5.25
+$25.70
+$25.70
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About This Design
Optical illusion: penrose triangle key ring
Another keychain colour? Click on "customise it", then on "edit", next select another background colour.
This penrose triangle on another Zazzle object? Contact us.
The Penrose triangle, also known as the Penrose tribar, is an impossible object.
The tribar appears to be a solid object, made of three straight beams of square cross-section which meet pairwise at right angles at the vertices of the triangle they form.
source: wikipedia
Customer Reviews
4.6 out of 5 stars rating5.4K Total Reviews
5,428 Reviews
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By Ali Y.4 February 2026 • Verified Purchase
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Lovely & cute keychains i love them thank you sooo much ,they also reached to me soo fast 😍.
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By linda f.18 June 2025 • Verified Purchase
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So cute and this is perfect!!!
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By Christina J.11 March 2024 • Verified Purchase
Premium Round Keychain, Large (5.397 cm)
These are a durable metal and the colors are vibrant. One of the clasp came broken but received a new one quickly. Customer service was responsive and quick to resolve the issue. They are bigger than I thought but still work for my wedding. I am satisfied with the print quality and surprised at how vibrant the colors are.
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Other Info
Product ID: 146649851486704341
Posted on 28/05/2011, 7:36 AM
Rating: G
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