The Mycartridge HP CF226A compatible 2 pack print cartridges are designed for use with HP printers, specifically those using laser print technology. These black cartridges come with a manufacturer warranty of 3 years, ensuring high quality and reliable printing performance. With this 2 pack option, users can conveniently order and store extra cartridges for their printing needs, ensuring continuous and consistent results.box was opened, but cartridges are both sealed.(seller note-location storage unit)