The product is a set of 4 ink cartridges designed to replace the original HP 564XL cartridges in black, cyan, magenta, and yellow colors. These compatible cartridges are suitable for various HP printer models such as Photosmart premium C309n, C310a, C310b, and C310c, as well as Photosmart D5468, C5324, C5370, C5388, C5390, C6340, C5373, C5380, C5383, C410d, C410a, C410b, B210b, and eStation C510a. The pack includes two black, one photo black, one cyan, one magenta, and one yellow cartridges, offering a convenient solution for printing vibrant and professional documents and images.