The Lenvalora 658X Toner Cartridges W2003X are compatible with HP printers, specifically designed for the models 658X and W2003X. These black toner cartridges use laser print technology for high-quality printing results. The unit type is a genuine replacement cartridge, ensuring reliable and consistent performance with your HP printer. Trust in the Lenvalora brand to provide quality printing supplies for your office or home use. Package has a slot but never removed . Please know what you are buying no returns accepted