The InkTec Premium Laser Toner Cartridges in cyan, yellow, and magenta are designed for use with Brother printers. Made by InkTec, these cartridges are compatible with Brother model 1250 printers and offer a print technology of laser for high-quality prints. Each cartridge comes with a manufacturer warranty of 3 months and is known for its premium quality. The cartridges are compact, with dimensions of 8 inches in height, 15 inches in length, and 7 inches in width.