For use in Kyocera TASKalfa 406ci and Copystar CS 406ci printers Compatible Replacement Toner Cartridges for Kyocera TK-5217K, Copystar TK-5219K PREMIUM Toner kit contains: 2 black cartridges. Yield 20,000 pages/cartridge; based on the industry standard ISO/IEC 19798 at 5% coverage The Smarter Choice, Made to Match performance. Lower your Carbon Footprint- buy Made in USA Toner