The Sharp MX-51NT Black Genuine/Original Laser Toner Cartridge is specifically designed for use with Sharp printers, such as the MX-5110N and MX-4110N models. This high-quality toner cartridge ensures crisp and professional-looking black prints, thanks to its laser print technology. With dimensions of 4 1/4" in height, 18" in length, and 3 1/4" in width, this cartridge is easy to install and provides reliable performance for all your printing needs.