Speedy Inks - Canon Compatible CLI-42 CLI42 CLI 42 Set of Gray Cartridges 6390B002 Gray 6391B002 Light Gray For use in Canon: Pixma Pro 100 Shelf Life: 36 Months Our compatible CLI-42 ink cartridges contain a brand new chip which allows you to track your printer ink levels. Benefit from tracking ink levels with our compatible CLI-42 cyan cartridge with a smart chip. 100% Quality Satisfaction Guarantee The use of aftermarket replacement cartridges and supplies does not void your printer's warranty