These original CLI-42 ink cartridges have been designed and manufactured to be used specifically with the Canon Canon Pixma Pro-100 printer. Carrying enough ink to give an estimated yield of 169-900 photos (depending upon the colour the Canon CLI-42 multi-pack is a cost effective way to run your Canon printer. The 13ml of dye-based ink inside each Canon CLI-42 cartridge comes with ChromaLife100+ technology making it resistant to UV light, temperature, humidity and even gases that detrimental to the long life of your prints.