This OEM inkjet printer fluid contains both the black and color cartridges, which fit both my Canon 2500 and 3500 series printers (I had the former first, and bought the latter for its added functionality, and, because they use the same cartridges). The package comes with free, small-sized, photo papers, which I have no use for, and, quite frankly, wish they wouldn't include, as I'm sure the cost would go down. At $50, it's pricey, but, not so much more than other mfr's printers. Printing an average of 2 pages per day of regular text, occasional full-page photos, and some mixed content, they last about 6 months, so, it isn't a bad deal, I suppose. Installation is quick and easy.