Set of 4 Axiom (TM) Remanufactured Ink Cartridge Replacement for Dell Series 21 P513W 4 Pack Axiom Remanufactured Ink Cartridge Replacement for Dell Series Dell Series 21 All-In-One P513w P713w V313 V313w V515w V715w Including 2 x Series 21 Black Compatible Ink, 2 x Series 21 Color Compatible Ink Cartridge Compatible with Printer Model: V313, V313W, P513W, V715W, P713w Approximate cartridge yield: Black Ink - 21ml each cartridge Compatible OEM Model: (Series 21, 22)