New Genuine Original Sealed Oki Okidata 400 series microline EXtTPrinter RibbonsThe product is a set of four genuine original sealed Okidata 400 series microline EXtTPrinter ribbons. These ribbons are specifically designed for use with OKI Data printers, including the Oki Microline 400 series printers and models 420, 421, 490, and 491. The ribbons are black in color and use dot matrix print technology for high quality printing. Manufactured in Japan, these ribbons are essential for maintaining the performance and efficiency of