This combo set from HP includes a black ink cartridge and a colour cartridge. This will give you ample black ink for 480 pages and enough colour for 330 pages. Specifications Page Yield Black: 480 pages Page Yield Colour: 330 pages Pack contains 301XL black cartridge and 301XL colour cartridge Compatibility HP Deskjet: 1000/1010/1050/1510/2050/2510/2540/3000/3050/3055 HP Envy: 4500/5530 HP OfficeJet: 2620/4630
