For use in models: IM C4500, IM C5500, IM C6000 (note: not for Models with MP C prefix) PREMIUM Toner kit contains 1 cyan cartridge Page Yield: 22,500 pages per cartridge, based on the ISO/IEC 19798 industry standard of 5% page coverage Our toners are formulated and made in the USA to match density, line resolution and cartridge yield. QUICK SHIPPING and 100% Performance Guarantee