Toner cartridge is designed for use with Hewlett-Packard LaserJet Printers 4240n, 4250n, 4250tn, 4250dtn, 4250dtnsl, 4350, 4350n, 4350tn, 4350dtn, and 4350dtnsl. Cartridge is made using 37 percent post-consumer recycled content by total weight of the cartridge and meets Executive Orders 13415 and 13423. All components are 100 percent recyclable. Recyclable parts can be easily returned with the enclosed return label. Packaging is made with a high percentage of recycled material. Cartridge yields 42,037 pages.