Features:

• Ultra-fine ink delivers crisply legible text and sharply defined images
• Pigment ink formulation for long-lasting prints
• Resists highlighter smearing and smudges
• Yields approximately 650 pages per cartridge, based on 5% coverage
• Compatible with Canon Pixma models iP4200, iP5200, iP5200R, 500, and 800

Editor Reviews:

Product Description:
Canon has poured all the Know How of its extraordinary history of developing innovative office machines into each of its copiers, printers, and networked office systems. The same superiority of design and manufacture goes into all of the Canon-branded consumable imaging supplies and parts for this equipment. Naturally, no one makes better parts and supplies for Canon products than Canon. Using genuine Canon parts and supplies is your best insurance against equipment damage, and possibly voiding your equipment warranty.

Amazon.com:
Compatible with Canon PIXMA models iP4200, iP5200, iP5200R, 500 and 800, the PGI-5BK black ink cartridge is created with pigment ink formulation for long lasting prints. Designed to be resistant to highlighter smearing and smudges, the ultra-fine ink provides your documents with crisply legible text and sharply defined images on a range of papers. The expected yield is approximately 650 pages per cartridge, based on 5% coverage.

What's in the Box:
Two black ink cartridges

Rating : - Expensive, but a good ink system
I had researched the Canon inking system and knew that it was not the least expensive on the market, but after living with it for a couple of months now I am comfortable with it's value. The positive indication that the cartridges are in correctly is kind of cool. I hate going in to change ink, so it is nice to know that they are in right before you button up the device.

I deducted one star because it is still a tad on the pricy side, but still worth it.