The product is a twin pack of original HP C4127X black toner cartridges, specifically designed for HP printers in the 4000-4050 series. These genuine/ original cartridges are new and sealed, ensuring high-quality printing performance. With a print technology of laser, these black toner cartridges are perfect for producing professional-quality documents and images. Each box contains two cartridges, making it convenient and cost-effective for uninterrupted printing tasks. Ideal for those looking for reliable and compatible printing supplies for their HP printer. Box was opened but cartridges are still sealed.