This Genuine HP 21 Black Ink Cartridge is perfect for printing high-quality documents and photos. It is designed to work with HP Officejet Pro 8600 printers and is compatible with several other HP printer models as well. The cartridge uses pigment inkjet technology which ensures that your prints will be sharp, clear and long-lasting.

The package includes four individual cartridges, each factory sealed in a new box. This bundle is a great value for anyone who needs to print frequently and wants to save money by buying in bulk. The ink in this cartridge is designed to last a long time and produces rich, deep black color that will impress anyone who sees your printed materials.