These contact lenses from Celena's recently launched Natural Collection are sure to draw attention. Both dark and light eyes are highlighted by the appealing pale yellow to light brown hue. Both day and nighttime wear are appropriate. Curve of the Lens Base: 8.6 38% water content 14.5 mm in diameter Duration: 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.