1.With best quality and pretty competitive price 2,Capacity:110ml;220ml 3.Beautiful ... need to buy new cartridges anymore,no waste of a single drop of ink,more perfect and scientific ... lot,comparing with using OEM cartridges.4.Convenience :No need to replace ink cartridges,just need to refill inks. ... :No damage to printer;No need to replace ink cartridge.6.Stability:Injection molding,better stability,no ...