Compatible cyan cartridge for Stylus C64 / C66 / C84 /C86, All cartridges which require to be chipped are so and are ready for use. This cartridge contains 13 ml of pigmented ink. All inkandstuff cartridges are guaranteed to perform to the same standards as the original cartridge, if not better, or your money back - all part of our 100% no quibble guarantee. These cartridges are manufactured to very high standards and contain the same, or greater quantity of ink than OEM (original equipment manufacturer) cartridges.