This drum unit kit is designed to replace worn drums in select Phaser printers. The kit includes four new photoconductor drums - one each in black, yellow, cyan and magenta. These precisely-engineered drums produce sharp, consistent toner coverage on every page. Installation is quick and simple with no tools required, allowing you to print vibrant colors and rich blacks again immediately. By replacing the drums, you'll restore the printer's ability to deliver professional quality output page after page. Whether you need to refresh an office workhorse or keep an older model in service, this affordable drum kit ensures your documents and designs maintain their impact