Package Contents: 4-Pack of DR221CL Drum Unit.(Black Cyan Magenta Yelllow),Cost per page $0.01.
High Page Yield: Up to 15,000 pages per DR-221CL black Drum Unit,up to 15,000 pages per color (at 5% coverage of A4 Paper),High Yield Version DR221CL.
Excellent Performance: Zstint Compatible Drum Unit are affordable and perform well, Each DR221CL Drum Unit can ensure full compatibility. Easy Installation And Quick Recognition. Refined toner powder provides high-quality images and text. Shelf Life: 24-Month.