Product details:

Package Included: 4 Packs Black 137 Toner Cartridge Compatible for Canon 137 Black Toner Cartridge CRG-137 CRG137
Page Yield: 2,400 Pages for Canon 137 Black Toner Cartridge (Standard: 5% coverage, Letter/A4).
Compatible Printer:
Canon i-SENSYS D570
Canon i-SENSYS MF232w MF242dw MF244dw MF247dw MF249dw MF236n MF237w MF231
Canon i-SENSYS MF211 MF212w MF216n MF217w MF226dn MF229dw MF227dw
Canon i-SENSYS LBP151dw
Canon Satera MF224dw MF222dw
Our products are certified with ISO 9001 and ISO 14001.
Easy to Install and High Compatibility

A simple and easy to understand introduction Click here

137 Toner Cartridge Introduction with pictures and text