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 !!!

I have been buying this cartridges for my Ben printers for many years, I have no complaints of the quality at all. The price of this cartridge is especially amazing.

Worked exactly as it should!

Always good as advertised

Great product, but packing and shipping poor!