The OEM Canon iR ADVANCE 4045, 4051, 4245, 4251 Black Toners are genuine/original black toners specifically designed for the Canon GPR 42 copier. These high-quality toners are compatible with Canon printers and are ideal for professional printing and copying needs. With a quantity of 2 included, these black toners are reliable and efficient, providing crisp and clear printouts every time. Perfect for businesses or individuals looking for consistent and professional-quality results, these Canon toners are a reliable choice for any printing requirement.