Compatible CISS Refill Ink Bottles(400ml, 100ml Per Color) HP920 920XL for HP All-in-one Printers Officejet 6500 6500 wireless 6500A e-all-in-one e710a 6500A Plus e-all-in-one e710n 7500A wide format e-all-in-one e910a Officejet 6000 6000 wireless 7000 wide format Refill Ink for use with CIS Systems (CISS) and refillable cartridges Dye Based Ink, 100ml per color High Quality, UV Resistant Compatible Printers: All printers using HP920 / 920XL ink Item Includes - 4 Ink Refill bottles (100ml per color)