The Canon GPR-57 Genuine Black Toner Cartridge is specifically designed for use with Canon imageRUNNER Advance 4525, 4535, 4545, and 4551 printers. This original toner cartridge ensures high quality prints in black color with a yield of up to 42,100 pages at 6% coverage. Made in Japan, this unit is a genuine product from Canon, ensuring compatibility and reliable performance. Ideal for professionals and businesses looking for consistent and professional results, this toner cartridge is a dependable choice for your print needs.