Fusers and maintenance kits for laser printers. The fuser melts toner into the paper and is a wear item, typically good for tens of thousands of pages.
Symptoms of a worn fuser include smearing, repeating marks, paper curling and a jam code at the rear of the machine. Kits here may include rollers and pickup pads where shown.
Match the fuser by part number and voltage. A fuser built for a different line voltage will run at the wrong temperature and can damage the printer.