The Genuine MX-B42CL Cleaning Roller Kit is an integral part of the laser printer that is comprised of multiple printer components that are essential for the fuser assembly. The Sharp MX-B402 cleaning kit includes a Lower Cleaning Roller, (2) Lower Cleaning Roller Bearings, Fuser Web Assembly and (2) Cleaning Pressure Springs. This cleaning kit is a genuine Sharp item, making it a highly durable and reliable product. This cleaning kit is made to keep the fuser rollers clean and in working condition.