Amazon.com Product Description
An ideal companion for your Canon BubbleJet, MultiPass, or S-series printer, this individually replaceable BCI-3e-series ink tank works with BC-30e and BC-33e cartridges and S600 printheads to help save money. Why replace the whole cartridge when only one color runs out? This twin pack contains two black ink tanks.

The tank is designed for use with Canon BJC-3000, BJC-3010, BJC-6000, MultiPASS C755, MultiPASS F30, MultiPASS F50, S400, S450, S500, S600, S630, and S630 Network printers and multifunctions.

From the Manufacturer
Canon is a world leader in printing technology. Numerous technical innovations from Canon offer true, professional-quality printing results on a wide variety of specialty photo papers and on plain paper, too. High-intensity inks ensure rich, high-contrast images with vivid colors and razor-sharp black text, so you'll enjoy better looking documents, web pages, and photos. Canon's desktop, mobile, multifunction, and photo printers are designed to deliver high-quality text and photo-realistic prints at fast speeds without compromising clarity and fidelity. For your Canon printer, always choose genuine Canon inks coupled with Canon Photo Papers to ensure long-lasting satisfaction. This package contains two BCI-3eBk black ink tanks.