LD Compatible Ink Cartridge Replacement for Canon CLI-42LGY 6391B002 (Light Gray) Capacity: 13 mL | Shelf Life: 36 months The use of compatible cartridges and supplies does not void your printers warranty This compatible cartridge is conveniently equipped with a smart chip that allows you to monitor and track your ink levels All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee For use in the following Canon PIXMA Printer: PIXMA PRO-100