Original HP 304 Black Twin Pack - For HP ENVY / DeskJet Printers

For use with the following printers - [HP DeskJet 2600, 2620, 2622, 2630, 2632, 2633, 2634, 2655, 3700, 3720, 3721, 3723, 3724, 3730, 3732, 3733, 3735, 3750, 3752, 3755, 3758, 3750, 3760, 3762, 3764, HP Envy 5010, 5020, 5030, 5032, 5055].