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Grid Optical Illusion Design Postcard

4.9 out of 5 stars rating
16045 Total Reviews |
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Signature Matte
18 pt thickness / 120 lb weight Soft white, soft eggshell texture
-CA$0.30
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Size: Standard Postcard

Create your own vacation-worthy postcard! Any view you’ve seen, any monument you’ve fallen in love with, can all be added to your postcard with our personalisation tool.

  • Dimensions: 14.22 cm L x 10.79 cm H; qualified USPS postcard size
  • High quality, full-colour, full-bleed printing on both sides

Paper Type: Signature Matte

Our Signature Matte paper is a customer favorite—smooth to the touch with a soft eggshell texture that elevates any design. Its sturdy 18 pt weight and natural feel make it the ideal choice for timeless, sophisticated events.

  • Exclusively made for Zazzle
  • Made and Printed in the USA
  • FSC® Certified—sourced from responsibly managed forests that protect both people and planet

About This Design

Grid Optical Illusion Design Postcard

Grid Optical Illusion Design Postcard

Lingelbach Scintillating Grid Optical Illusion The scintillating grid illusion is an optical illusion, discovered by E. Lingelbach in 1994, that is usually considered a variation of the Hermann grid illusion. It is constructed by superimposing white discs on the intersections of orthogonal grey bars on a black background. Dark dots seem to appear and disappear rapidly at random intersections, hence the label "scintillating". When a person keeps his or her eyes directly on a single intersection, the dark dot does not appear. The dark dots disappear if one is too close to or too far from the image. Description from Wikipedia
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Customer Reviews

4.9 out of 5 stars rating16K Total Reviews
14613 total 5-star reviews1036 total 4-star reviews203 total 3-star reviews75 total 2-star reviews118 total 1-star reviews
16,045 Reviews
Reviews for similar products
5 out of 5 stars rating
By Tina J.March 5, 2019 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Zazzle Reviewer Program
nicely done very clear. print turned out well done
5 out of 5 stars rating
By Denise W.May 1, 2024 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
I'm in love! Just look how sweet these two are! 🥰☘🍀. Great graphics n print! Glossy adds flair! Thanks! ☘🍀
5 out of 5 stars rating
By Denise W.May 1, 2024 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
🐰🐇..Bundorable sweet card! Love the vintage vibe which I wanted! Not a flimsy card! Graphics are awesome n print so good!

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Other Info

Product ID: 239228289502131240
Designed on 2015-05-11, 9:46 AM
Rating: G