These cartridges are made primarily of plastic, which allows for local recycling and local energy recovery. When recycling is done locally, the environmental impact associated with transporting the cartridges is reduced. To support local recycling and energy recovery, Canon has engraved a plastic code on each cartridge. Canon large format ink cartridges are suitable for local recycling and local energy recovery facilities. Print up to 5,000 pages with one cartridge Genuine Canon toner cartridges ensure detailed results with long durability