Okidata 52102001 Black ribbons 6-PK for Microline, 120 172, 180, 182, 183, 184, 186, 192, 193, 194, 195, 280, 320, 321, 3320, 3321 in Retail Packaging - Genuine PCI Brand Replacement for Okidata printers - 52102001SBPC PCI UPC 845161023273 For use with Oki Microline and Okimate printers. Approximate 3 Million Character Yield Black Matrix Nylon Ribbon Package Quantity: 6 Excellent Quality.