The NEW HP 901XL/901 Black/Tri-Color Combo Pack Ink Cartridges are genuine/original cartridges specifically designed for HP printers. This combo pack includes both black and tri-color cartridges, perfect for a variety of printing needs. With an expiration date of Nov 2011, these cartridges are compatible with HP Officejet printers and offer reliable, high-quality prints. Made in Singapore, this unit quantity of 1 cartridge is a convenient and efficient choice for those looking to replenish their printer ink supply.