The product is a set of 5 black ink cartridges designed as a replacement for HP 564XL cartridges, compatible with various HP PhotoSmart printers including 7510, 5510, 6520, 7520, and 5520 models. These compatible cartridges use inkjet print technology and come with a manufacturer warranty of 3 years. The cartridges are in cyan, photo black, yellow, magenta, and black colors, and are designed to provide up to 800 pages of printing at 5% coverage per black ink cartridge. They feature a new generation chip for compatibility and are manufactured in China.