• Compatible with a wide range of HP printers
• Pigment-based inks provide superior print density and fade-resistance
• Designed to work with HP specialty media, transparencies, and plain papers
• Works with HP 23 tri-color, HP 78 tri-color, and HP 17 tri-color cartridges
• 2 cartridges per package; each cartridge contains 25 ml of ink

The HP 15 black inkjet print cartridge is designed to feature proprietary HP pigmented ink. The HP 15 black inkjet print cartridge works with HP 23 tri-color, HP 78 tri-color and HP 17 tri-color inkjet print cartridges to deliver outstanding print quality on any paper.

I am happy with this purchase and the price is quite good.