Sensible Toner Laser Toner cartridges are always a great choice for your business. Our customers want to buy OEM quality cartridges without the OEM toner cartridge price tag. The Remanufactured Toner cartridges we sell help our customers save money while delivering the exceptional quality they expect from OEM cartridges. These OEM Quality replacement cartridges are built from a recycled core that has to pass inspection before being used. All replaced components are brand new and after getting filled with premium toner, the cartridge is quality inspected and tested before being shipped. This cartridge is guaranteed to meet or exceed OEM cartridge quality and performance and will print 25,000 pages at 5% toner coverage per page or more. Our remanufactured cartridges carry a one year warranty that extends beyond the Amazon 30 day return policy. This box contains one Sensible Toner, Lexmark Compatible Replacement 56F1U00 Ultra High Yield Toner Cartridge for MS521, MS621, MS622, MX521, MX522, MX622 Laser Printers, 25,000 pages.