These are two new genuine Canon Pixma black ink cartridges, model PGI-225PGBK, designed for use with Canon Pixma printers. The cartridges are original sealed and manufactured in Japan by Canon. They are compatible with the Canon Pixma iP4820 model and are ideal for high-quality inkjet printing. Each cartridge has a black color and measures 4 inches in length, 5 inches in height, and 1 inch in width. Upgrade your printing experience with these genuine Canon ink cartridges.