Compatible CISS Refill Ink Bottles(400ml, 100ml Per Color) HP940 940XL for HP All-in-one Printers HP OfficeJet Pro 8000 Pro 8500 Compatible CISS Refill Ink Bottles(400ml, 100ml Per Color) HP940 940XL for HP All-in-one Printers HP OfficeJet Pro 8000 Pro 8500 Dye Based Ink, 100ml per color High Quality, UV Resistant Compatible Printers: All printers using HP940 / 940XL ink Item Includes - 4 Refill ink bottles (100ml per color)