The HP 302 cartridges belong to a number of printers from the HP DeskJet, HP OfficeJet, and HP Envy printer lines. This doesn't automatically mean that if you have a printer from one of these 3 lines, the cartridges will fit. Read the product texts of the cartridges well in advance, because they contain all suitable printers. If your model isn't listed, you need a different cartridge line for your printer. The 302 cartridge series is available as a combo pack, but you also have the choice of only the 3 colors or black.