2pk non OEM Canon CLI-221 compatible black Ink Cartridge With CHIP! (2) CLI 221 black. Fits Canon All-in-One Machines PIXMA MP620 PIXMA MP980 PIXMA MX860(PIXUS MP610) Canon Photo Printers PIXMA iP3600 PIXMA iP4600.

The cartridges were as I had hoped - great quality and compatible. I have purchased others that were supposedly compatible with my printer but weren't, or that didn't contain the chip which rendered them useless. I was able to pop one if these cartridges in and use it immediately. Great quality printing.