The product is a genuine Canon BC-10 black printhead and ink, specifically designed for use with Canon printers BJC-70, BJ-30, BN700, STARWRITER JET 300, 500, and 4000. This original inkjet print technology ensures high-quality black prints, packaged in a box for easy storage. Ideal for those looking for reliable and authentic Canon printing supplies, this unit is perfect for maintaining the performance of your Canon printer.