The Staples Sustainable Earth Toner Cartridge Model SEB51XR is a remanufactured black toner cartridge designed for HP printers, specifically the HP Q7551X model. This toner cartridge utilizes laser print technology and is made in the United States by Staples. It offers a high-quality printing solution with a focus on sustainability, making it an eco-friendly choice for both individuals and businesses looking to reduce their carbon footprint.