ND Brand Dinsink 4x30ml refill ink kit for HP 56 57 ink cartridge:OfficeJet 4110, OfficeJet 4110v, fficeJet 4110xi, OfficeJet 4215, OfficeJet 4215v, OfficeJet 4215xi, OfficeJet 5505, OfficeJet 5510, OfficeJet 5510v, OfficeJet 5510xi, OfficeJet 5600, OfficeJet 5605, OfficeJet 5610, OfficeJet 5610v, OfficeJet 5610xi, OfficeJet 6110, OfficeJet 6110xi...The item with ND Logo! ND Brand refill ink for HP 56 57 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