For use in Kyocera TASKalfa 356ci, 358ci and Copystar CS 356ci, 358ci printers Compatible Replacement Toner Cartridges for Kyocera TK-5207K, Copystar TK-5209K PREMIUM Toner kit contains: 2 cartridges. Yield 18,000 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