Fullmark N639BK Seamless Nylon Ribbon Compatible Replacement for Okidata ML 182/320 / 390/720 / 790, Black, 9-Pack Color: Black Size: 8mm X 1.6m 9pcs value pack Seamless Nylon Printer Ribbon for Okidata ML 182/320/390/720/790 Manufactured in ISO 9001 and ISO 14001 certified plant