The ONLYU Compatible Toner Cartridge Replacement for Brother TN436 Set Of 4 is a high-quality product designed for printers. This set includes four toner cartridges in black, cyan, magenta, and yellow colors, all compatible with Brother printers. With a page yield of 6500, these cartridges offer a high yield for long-lasting printing. The manufacturer, ONLYU, ensures reliability and quality without being an original Brother product, making it a cost-effective option for those looking to replace their toner cartridges.