Original HP 302 / 304 Ink Cartridges Black & TRI Colour Set Pair PLEASE NOTE ONCE YOU OPEN THE PACKET FOR THE INK WE DO NOT ACCEPT RETURNS FITS IN PRINTERS THAT SUPPORT 302 OR 304 CARTRIDGES. HP HAS COMBINED THE HP 302 AND HP 304 INK RANGES INTO A SINGLE, UNIFIED CARTRIDGE (OFTEN LABELED AS HP 302/304). THIS WAS DONE TO SIMPLIFY THE PRODUCT LINE, MAKING IT EASIER FOR CUSTOMERS TO KNOW WHICH INK FITS THEIR PRINTER AND ALLOWING RETAILERS TO MANAGE FEWER ITEMS IN STOCK. Original genuine HP ink, not a copy or cheap replacement that may not work in most printers. Buy original with confidence Compatibility For use with the following printers - [HP DeskJet Series: 1110, 2130, 2132, 2134, 2136, 2620, 2622, 2630, 2632, 2633, 2634, 3630, 3632, 3633, 3634, 3635, 3636, 3637, 3638, 3639, 3720, 3730, 3732, 3733, 3735, 3750, 3760, 3762, 3764 HP Envy Series: 4520, 4522, 4523, 4524, 4525, 4526, 4527, 4528, 5010, 5020, 5030, 5032, 5050, 5055 HP OfficeJet Series: 3830, 3831, 3832, 3833, 3834, 3835, 4650, 4651, 4652, 4654, 4655, 4657, 4658, 5220, 5230, 5232, 5233 HP AMP Series: 100, 120, 125, 130]