The product is a 2-pack of compatible Canon ImageCLASS MF455dw toner cartridges, designed for use with various Canon printers. Made by Teletoner, these black toner cartridges have a print technology of laser and a page output of 3,100 pages. They come with a manufacturer warranty of 3 years and are compatible with Canon 057 toner cartridges. The cartridges are specifically designed for printers like imageCLASS LBP226dw/227dw, MF445/MF448dw/449dw, LBP223dw/226dw/228x/MF443dw, and MF446x/Satera LBP224/221. This reliable and high-quality product provides excellent printing results for professional and personal use.