Our custom, patented GlareCards® take demonstrating polarized sunglasses to the next level. The full-color photographs used on GlareCards offer a realistic depiction of the glare reducing benefits of polarized eyewear. When the GlareCards are viewed without sunglasses, you can see an image but it is shiny and difficult to recognize. But when you see the card with polarized eyewear, the glare goes away!