Specifications: 1.56 Index CR-39 Resin Single Vision Lenses with Tint Coating: HMC, AR, HC, UV400. They are not polarized Color: 45 Shades to choose from. The price is for one pair (2 Lenses) These lenses are often referred to as Mid Index Thin or Light Lenses and are a blend of superior optics with their design. Since they are 15% thinner than 1.5 index this makes them a good lens for stronger prescriptions. For accurate ordering of lenses please contact us via our customer service email at...