Test your eyesight and your sense of humor with this unique T-shirt. This black T-shirt features an Ishihara test design. If you can't see the number, you need to Drink Water, Sleep, Shower, Eat or Eat Chocolate. Wear this shirt to your next eye exam, or as a fun way to express your love for chocolate and a laugh. Made from comfortable, breathable fabric for all-day wear. Makes a great gift for optometrists, chocolate lovers, or anyone with a quirky sense of style.