The product is a lot of 20 genuine HP DesignJet 727 ink cartridges in gray color, with a capacity of 130ml each. These OEM cartridges are specifically designed for HP printers and are compatible with various models such as DesignJet T1500, T930, T1530, T2530, T920, and T2500. The cartridges use inkjet, pigment, and thermal print technology to ensure high-quality prints. Ideal for professional printing needs, these cartridges are a reliable choice for those seeking consistent and exceptional results with their HP printers.