The product is a 4 pack of EZink TN221/225 compatible toner cartridges for Brother printers. These cartridges are in cyan, yellow, magenta, and black colors. The manufacturer warranty is not specified, and they are compatible with Brother TN221 and TN225 models. The unit type is a single toner cartridge, suitable for printing with Brother printers. This product is ideal for those looking for high-quality, compatible toner cartridges to ensure consistent and vibrant printing results.