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Sale Price $6.24.
Original Price $7.80 Comp. value
per keychain
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Optical Illusion Keychain
Qty:
Style
Aluminum Circle
+$1.95
+$1.95
+$20.60
+$20.60
About Keychains
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About This Design
Optical Illusion Keychain
Instructions: 1) focus gaze on red dot 2) wait for disk to hover and wiggle over the background design 3) be amazed! (it helps if you clicky on the magnifying glass button there to view the product full-size). We're guessing the effect results from the differing characteristic spatial frequencies of the foreground and background that generate error signals during micro-saccades that the brain cannot cancel simultaneously. Science!
Customer Reviews
4.6 out of 5 stars rating5.4K Total Reviews
5,384 Reviews
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5 out of 5 stars rating
By linda f.June 18, 2025 • Verified Purchase
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So cute and this is perfect!!!
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By Zali O.August 9, 2023 • Verified Purchase
Aluminum Circle, 2"
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These are so cute and beautiful made. Printing is good clear
5 out of 5 stars rating
By Jessica K.March 2, 2023 • Verified Purchase
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These keychains were perfect for our 5th grade traveling volleyball team. I just added a tassle, and they were the perfect gift! .
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Other Info
Product ID: 146061835526311491
Created on: 6/1/2010, 7:42 AM
Rating: G
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