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Sale Price $14.84.
Original Price $18.55 Comp. value
per shirt
You save 20%
Illusory contour optical illusion grid T-Shirt
Qty:
Style
Basic Dark T-Shirt
-$1.10
+$7.65
Color & Print Process
Black
Vivid Printing: White Underbase
About T-Shirts
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About This Design
Illusory contour optical illusion grid T-Shirt
It looks like there are bright black circles overlapping a grid, but it's just an optical illusion, in reality, it's just crossed lines. This illusion is sometimes mistakenly referred to as "Ehrenstein", but it is one of the illusory contour figure illusions. The ends of the bright segments produce the illusion of circles. The apparent figures have the same color as the background, but appear brighter. A similar effect is obtained in the Kanizsa triangle (look for this design in our "Optical Illusions" collection).
Instead of yellow lines, you may change the color to anyone you like; play around to find what best matches the background (fabric) color of your choice. You may also play around with the rotation of the design (we've set this one to 45 degrees).
Customer Reviews
4.7 out of 5 stars rating31.5K Total Reviews
31,479 Reviews
Reviews for similar products
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wore adult large and 5’9”, 110# female wore adult medium . Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Grandma wore adult large with long sleeve shirt underneath. Tall girl adult medium. Dark haired male adult large. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wearing adult large and female wearing adult medium. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back. They printed random cupcake image I downloaded from internet with no problems! Looked perfect! Front design was stock from zazzel.
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Other Info
Product ID: 235753376550268858
Created on: 7/4/2019, 6:36 AM
Rating: G
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