These contact lenses from Celena's recently launched Natural Collection are sure to draw attention. A stunning hazel shade that accentuates both light and dark eyes that can be worn day or night. Base Curve: 8.6 38% water content 14.5 mm in diameter Substitution Timetable: three months Note: Two lenses are included in a package of cosmetic lenses without power. One lens per degree is included in the package of prescription lenses with degrees.