The original HP 301 ink cartridges produce consistently high-quality print outs. This twin pack contains both of the standard capacity HP 301 ink cartridges you need for your HP Deskjet or HP Photosmart printer. This HP 301 twin pack contains one of each of the following ink cartridges: HP 301 Original Black Ink CartridgeHP 301 Original Tri-Colour Ink Cartridge Deskjet 1000,Deskjet 1010,Deskjet 1050,Deskjet 1050A,Deskjet 1510,Deskjet 1512,Deskjet 1514,Deskjet 2050,Deskjet 2050A,Deskjet 2050s,Deskjet 2510,Deskjet 2512,Deskjet 2540,Deskjet 2542,Deskjet 2544,Deskjet 2545,Deskjet 2549,Deskjet 3000,Deskjet 3050,Deskjet 3050a,Deskjet 3055A,Envy 4500,Envy 4502,Envy 4503 e-All-in-One, Envy 4504,Envy 4505,Envy 4507 e-All-in-One, Envy 4509 e-All-in-One, Envy 5530,Envy 5532,Envy 5534,Envy 5539,Officejet 2620,Officejet 2622,Officejet 4630,Officejet 4632,Officejet 4634