The DR223, DR223CL Drum Unit Set 4 Pack is a collection of drum units designed for printers that use the DR223 model. Each pack includes four drum units, with three units being partially sealed. These drum units are essential components for printing high-quality documents and images. The sealed packaging ensures the longevity of the ink and helps maintain the overall performance of the printer. Whether for personal or professional use, this set of drum units provides reliable and consistent results for your printing needs.