Replacement toner cartridge for OKI laser printers. Genuine OKI product for flawless operation. Compatible with B710, B720 and B730Yield of approximately 15,000 pages. Ensures great precision in your prints. Colour: Black.Compatible Printers: OKI B 710 Series, OKI B 730 N, OKI B 710 DN, OKI B 710 N, OKI B 720 DN, OKI B 730 DN, OKI B 720 N