Designed for deep cleaning large diameter lenses (11mm to 23mm) in Menicon progent solution. A non-vented barrel style contact lens case fabricated with clear polycarbonate (PC) cylinder with acrylonitrile-butadiene-styrene (ABS) copolymer non-vented screw cap and lens holder/basket. Each lens basket is molded with a letter, "L" or "R", for ease in proper lens identification. The left lens basket is also colored grey to assist patients who are not currently wearing their contact lenses. The lens case is capable of holding the 10 mL of Menicon Progent Protein Remover A/B mixed solution for effective protein removal. After cleaning, lenses should be stored in daily storage case, this case is only used for cleaning large diameter lenses using progent cleanser. This case is not designed to be used with clear care, Boston, lombard, or any other gas permeable contact lens cleanser.