The RELCOLOR 67XL 2-Pack Ink Cartridges in Black & Tri-Color are designed for use with HP printers. This standard inkjet print technology ensures high-quality printing results. Compatible with various HP models including DeskJet 4100, DeskJet 4155, ENVY 6422, and more. The cartridges are easy to install and provide reliable printing performance. Perfect for those looking for consistent and professional-quality prints.