The Genuine HP 74 Black & 75 Tri-color Combo 2 Pack Ink Cartridges are original products designed for HP printers. The ink cartridges are compatible with select Unimark printers as well. The print technology used is inkjet, providing high-quality prints in both black and tri-color. This combo pack includes one black and one tri-color cartridge, ensuring you have all the necessary supplies for your printing needs. The cartridges are genuine and come with a warranty that expired in 2014, making them reliable options for your printing tasks.