INKUTEN (TM) Set of 2 Refill Ink Kit 70ml for T6641 Black Expression Ecotank ET-2500 ET-2550 ET-4500 ET-4550 L100 L110 L120 L200 L210 L300 L350 L355 L550 L555 Printers 2 Refill Ink Kit (Black) Cartridge number : T6641 For Expression ET-2500 ET-2550 ET-2650 ET-4500 ET-4550 L100 L110 L120 L200 L210 L300 L350 L355 L550 L555 Printers Regular refill bottle for an easy using. 70ml / Bottle