The product is a set of three brand new genuine HP 304A black laser jet toner cartridges, still unopened. These cartridges are specifically designed for HP printers, featuring genuine/original print technology for high-quality black printing. Each cartridge has a unit height of 4 inches and is compatible with the HP 304 model. Ideal for those looking to replenish their printer ink supply with authentic HP cartridges that ensure reliable and professional print results.A