Polaroid CB321WN Replacement Ink Cartridge for HP 564XL - Black High performance, guaranteed replacement inkjet cartridge from Polaroid, the leader in digital imaging. High yield black replacement ink cartridge for HP PhotoSmart series machines (see full compatibility below). Approximate yield: 800 pages at 5% page coverage Smart engineering means a perfect fit for your machine while providing the same performance and reliability as original HP supplies. Helps protect our environment by containing recycled components, resulting in over 90% of the original cartridge's non-wearing parts from needlessly clogging landfills.