This product is a genuine Brother TN436BK extra high yield 436 black toner cartridge, sealed for optimal printing performance. Designed for use with specific Brother printers, such as MFC-L8 series and HL-L8 series, this toner cartridge ensures high-quality, crisp black prints. With a laser print technology, this genuine Brother product guarantees reliable results and professional documents every time. Made in China, this original Brother toner cartridge is a dependable choice for those seeking exceptional printing quality and compatibility with their Brother printer models.