The Canon CLI-581 XXL colour ink multipack is incredible value for money and perfect for high volume home or office printing. The XXL in the name refers to the internal capacity of the ink tank rather than the physical size of the cartridge. A CLI-581 XXL ink cartridge will fit the same printers as the standard sized version but contains a much higher volume of ink. If you find you have to order new CLI-581 colour ink cartridges regularly you can save time and money with these XXL options.