Along time ago, I had a Lexmark printer that required small cartridges which had to be replaced at $50.00 or more each. My Cannon Printer using the 137 Black toner lasts for months of moderate use or for many weeks of heavy use such as printing a book of 40 pages per copy. This is a significant saving.

I have been buying these toners for years. Sometimes "Compatible" and sometimes "Moustache". Quick and efficient delivery. Excellent price. Print quality is excellent as always. A few years ago I purchased a cheaper brand on Amazon, but the print quality was awful. I remain a loyal and grateful client !!!

Great product, but packing and shipping poor!

Je n'ai imprimé qu'une dizaines de feuilles jusqu'à maintenant et ça fonctionne comme il faut pour une fraction du prix de l'originale .

Great product, fast delivery.

Look and install the same as the original brand, but its leaving a terrible mess on my printed sheets, will add photo later. I reinstalled the old cartridge and it prints well, but this one is a mess