Major $ saver, holds 5X as much as the basic cartridge. easy to refill, once I understood directions & got my running, I ordered another set for my second printer which took 2 min. to set up. Just remember to NOT break off the extra tab the sticks up on the Magenta cartridge-: this is what presses the tab on the printer door electronic, making the printer think that the door is shut. Plan to use this set up on all my future printers.