The product is a new complete set of four genuine/original black toner cartridges from HP, specifically the HP 504A 504x CE250X, CE251A, CE252A, and CE253A. These high-quality toners are designed to work with HP printers that use laser print technology, ensuring crisp and professional-looking documents. As genuine HP products, you can trust that these cartridges are reliable and will produce consistent results each time. Ideal for both home and office use, this set of toners is a great choice for anyone looking to maintain their printer's performance.