Menicon Progent is an intensive Cleaner and Protein remover for RGP and hard contact lenses. This product contains two vials of fluid which need to be mixed together. It is designed to be used with the Menicon Heavy Duty Case, which is sold separately. This pack contains 7 treatments. PLEASE NOTE: Progent is a very powerful cleaner and should only be used under instruction from your eye-care practitioner.