The Canon CLI-581 XL yellow printer ink cartridge is filled with Canon’s outstanding Chromalife 100 ink that gives amazing results every time. This ink has been designed to work with a number of Canon’s TS and TR Pixma printers that are ideal for use in a busy household or small office. When you order ink for your Pixma printer online at just ink and Paper we will pop the cartridges in to some eco-friendly, recyclable cardboard envelopes that will fit through a standard size letterbox.