Combo Pack Contains 4 Laser Toners Compatible with Xerox 6500 (Complete Set) ; 1 Black, and 1 Cyan, 1 Magenta, 1 Yellow. For use in the following Printer Models: Phaser 6600 and WorkCentre 6505 Page Yield: 3,000 Pages per Black toner & 2,500 Pages per Colour Toner at Standard Coverage Rate of 5% on A4 Paper Size. Manufactured with highest quality and standards by ISO, CE, & REACH manufacturer for best printing performance matching the standards of OEM. PRINTOXE® Brand® 100% Compatible in Retail Package Shown in Image. Shelf Life Exceeds 24 Months.