2x4oz ND Brand Dinsink Black Premium Dye ink refill kit for HP 60 60XL black ink cartridge and HP Deskjet F4213, F4230, F4235, F4240 series inkjet printers 2x4oz ND Brand black premium water-based dye ink for HP 60 HP 60XL black ink cartridges 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).