The product is a 2 pack of genuine/original HP LaserJet 78A black ink print toner cartridges, model CE278A. These cartridges are specifically designed for HP printers, including models LJ P1566, P1606, and M1536. Manufactured in Japan, these high-quality cartridges provide excellent print results with a focus on crisp and clear black text. Upgrade your printing experience with these reliable and efficient toner cartridges from HP.