-4 million character ribbon. -Minimum wear on printer due to high quality ribbon material. Compatible Printers: OKI Microline 6300 SC, OKI ML 6300 FB, OKI Microline 6300 FB, OKI Microline 6300 Flatbed, OKI Microline 6300 Series, OKI ML 6300 Flatbed, OKI ML 6300 FB-SC, OKI Microline 6300 FB-SC, OKI ML 6300 Series, OKI Microline 6300, OKI ML 6300
