These contact lenses from Celena's recently launched Natural Collection are sure to draw attention. Ideal for both daytime and evening wear, this lovely light grey accentuates both light and dark eyes. Curvature of the lens base: 8.6 38% water content 14.5 mm in diameter Duration of Use: Three Months Note: Two pairs of non-prescription cosmetic lenses are included in each pack. One prescription lens per degree is included in each prescription lens pack.