The Black On White Label Cartridge M-K231 is a compatible product made by Vevor specifically for use with Brother printers. This cartridge features a white and black color scheme, making it ideal for creating high-quality printed labels. With a unit quantity of 1, this cartridge is designed to meet the needs of users who require reliable and efficient printing solutions. Compatible with Brother printers, this product offers a convenient and cost-effective option for those in need of 12mm label cartridges.