Specifications:Complex technology brings complete compatibility.The ink are stored in a constant pressure structure, making stable outflow of the ink, which means smooth and consistent printing.Item Name: CartridgeQuantity: 4 Colors/1 SetCompatible Printer: for HP DeskJet 3525, 4615, 4625, 5525, 6520, 6525Notes:Please confirm that your old ink cartridge model you have used before is for HP 655.When install the new cartridges into printer, the computer would promote Non-Original, please click Yes, then the printer can go on to print.Please make cartridges upside down and remove the protective clip before you install the ink cartridges.Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Included:1 x Black Ink Cartridge1 x Cyan Ink Cartridge1 x Magenta Ink Cartridge1 x Yellow Ink Cartridge