This listing includes 10 sets of Fuser Pressure Roller Bushings.These compatible parts are designed to fit imageCLASS MF3010, MF4410, MF4412, MF4420, MF4450, MF4570, MF4430, MF4550, MF4580, MF4583, MF4554, MF4553, MF4453, MF4452, MF4770, and D520 printers.The bushings serve as replacement components to restore the function of the fuser assembly.This product is a compatible accessory and is not an manufacturer part.