This Brother TN437M toner cartridge is brand new and sealed, ensuring that you will receive a high-quality product that will last. The cartridge is designed for use with Brother printers and is specifically compatible with models that require magenta toner. With an ultra high-yield capacity of up to 8000 pages, you can expect a long-lasting and reliable performance from this product. The TN437M cartridge is perfect for those who print frequently and require consistent and vibrant color output.