I mistakenly purchased these ink cartridges from another flea market site, thinking they were ready to be installed in my printer. I'm not quite sure how to refill them, so I'm selling them at a discounted price, as they were when I bought them. The black cartridge seal is open, but the color cartridges are unopened. The black cartridge was already opened when I purchased it, and the description stated "opened but couldn't be installed." Therefore, I don't know how much ink is left. *Please note that these are compatible ink cartridges, not genuine ones.* *Please consider the black cartridge as a bonus, as it has been opened.* *I cannot guarantee they will work, so please only purchase if you understand this and know how to refill ink cartridges. Thank you. m(_ _)m*