ND R@ 4X100ML refill ink kit with syringes for 61 61XL Envy 4500 5530. The item with ND Logo! ND Brand refill ink for HP 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 Five bottles 4oz ink The ink quality is same as OEM ink