ND R@ 4x30ml 61 61xl refill ink for Envy 4500 5530 printer ...The item with ND Logo ND Brand refill ink for 61 61xl ink cartridge The item comes with detail refill instruction. You can refill ink for your original ink cartridge. It is a big saving. Highest UV resistant rating on market Four bottles 30ml ink The ink quality is same as OEM ink