ND R@ 6x4oz Dye ink refill kit for 920 920XL and Officejet 6000, 6500, 7000, 6500A, 7500A printers. The item with ND Logo! 6x4oz ND Brand premium water-based dye ink for HP 920 920XL ink cartridge Easy refilling! Big saving! Stability: No setting in 3 years (at normal storage) Temperature: -15C no frozen and 70C no gelling Lightfastness: 5-6 BWS; Waterfastness: 3 (Average); Gasfastness: 4 (Good).