['For use in Microline: 120, 172, 180, 182 Plus, 182 Turbo, 183, 186, 192, 193, 194, 195, 240, 280, 320, 320 Turbo, 321, 321 Turbo, 321 Turbo with CSF, 388, 3320, 3321, 5320, 5330, 8320, 8330','For use in OKIPOS 425D, OKIPOS 425S, OKIPOS Series 50 & Oki 120','Compatible Replacements Included: 6 Okidata 52102001 Black Nylon Printer Ribbon Cartridges','Color: Black Yield Type: Standard Shelf Life: 48 Months','Professionally manufactured by LD Products']