Features 1Safety: Our colorblind lens can help people with abnormal red and green vision to easily identify traffic lights, ensure driving safety, and also ensure the own safety of red and green blind patients. 2Normal: As long as you wear our red green color blindness lens, you will be able to see colors normally, and improve your daily life, better perceive all colors. 3Light Color: Due to the special treatment of the film layer, the color of the lens are relatively light, and the appearance is closer to some ordinary frame lens. Generally, it is difficult for people to think that they are color blindness lens. 4Processing Technology: The color blindness lens are treated with double sided coating, the process is much more complicated than ordinary color blind lens. 5Universal Type: This red green color blind lens is a universal type, which can be used by people with color blindness and normal vision and you will be satisfied. Specification Item Type: Colorblind lens Material: Pc Size: Diameter: Approx. 66mm / 2.6in Thickness: Approx. 2mm / 0.1in Camber: 4.5c Package List 1 x Colorblind Lens