Since light green eyes are difficult to find naturally, COLORVISION Green makes it easy to get the look you've been wanting. Inspired by the greens of nature, this color is enhanced by a complex blend of dozens of natural dyes to give you a sophisticated yet youthful appearance. Details of the product material of the lens: Hima 55 55% of the water is water. Base Curve: 8.6 Center Diameter: 14.2 0.04 in thickness Contents of the package: a pair of lenses Use period: up to 14 hours per day for a maximum of two months