• The Hermann Grid Illusion or Scintillating Grid Illusion is a crazy optical illusion dark colored dots appear at the intersections of a grid, but when you look at them they disappear and appear elsewhere. Freak your friends out with this trippy "disappearing dots" optical illusion T-shirt.
• A great shirt to wear at home and around town, and especially good for places like the comic book store, the movies, the eye doctor's office, comic con. Great gift for the smart, nerdy, funny person in your life.
• Lightweight, Classic fit, Double-needle sleeve and bottom hem

The Hermann Grid Illusion or Scintillating Grid Illusion is a crazy optical illusion dark colored dots appear at the intersections of a grid, but when you look at them they disappear and appear elsewhere. Freak your friends out with this trippy "disappearing dots" optical illusion T-shirt.Hermann Scintillating Grid Optical Illusion Trippy