This is a contact lens care product, Concept One Step. With the disinfecting and moisturizing power of H2O2, it keeps your lenses clear, like new, every day. It's a 300ml bottle. I've used it a few times, but it didn't suit me, so I'm selling it. Please consider purchasing, understanding that there are 23 uses remaining. [Brand] Concept [Capacity] 300ml [Product Condition] 23 uses remaining [Color] Clear #ContactLensSolution #SoftContactLenses #OneStep