Primal Acid I - Pink and Black Coloured Contact LensesShow that you're soulless with our Acid I Anime Mini Scleral 15. 2 mm Contact Lenses. The lenses feature an enlarged black pupil with a soft pink iris and black ring outlining the contact lenses, making for a scary addition to your Halloween costume! These contact lenses can be used for 3 months once you open them and if stored and cleaned as per the manufacturer's instructions.