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Sale Price $8.19.
Original Price $9.10 Comp. value
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Optical illusion: penrose triangle keychain
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Style
Aluminum Circle
+$2.40
+$2.40
+$11.65
+$11.65
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Optical illusion: penrose triangle keychain
Another keychain color? Click on "customize it", then on "edit", next select another background color.
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
5,431 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Ali Y.February 4, 2026 • Verified Purchase
Aluminum Circle, 2"
Lovely & cute keychains i love them thank you sooo much ,they also reached to me soo fast 😍.
5.0 out of 5 stars rating
5 out of 5 stars ratingBy V.August 21, 2023 • Verified Purchase
Zazzle Reviewer Program
Beyond expectations. Choice of artwork is overwhelming, I found exactly what I needed from SJW_Graphics. Detail, colors, overall design looks great on this keyring. Could use as a pendant, purse charm, bookmark, too! Metal is sturdy without being heavy. Colors beautiful, with clear margins. Customized name makes this gift extra special. So many fonts, so many colors & sizes!
Original product
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Nico S.February 27, 2024 • Verified Purchase
Aluminum Circle, 2"
Zazzle Reviewer Program
I find this very interesting and great since I am a huge fan of snakes. This keychain fits the bill!
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Other Info
Product ID: 146649851486704341
Created on: 5/28/2011, 7:36 AM
Rating: G