The product is a set of 3 Brother PC-301 printing fax cartridges and 1 refill cartridge. These cartridges are specifically designed for use with Brother printers and fax machines, such as the PC-301 and PC-302RF models. The cartridges provide high-quality printing and faxing capabilities, making them a reliable choice for both home and office use. With this set of cartridges, users can ensure consistent and clear results from their Brother printing and faxing devices.
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