2 x Brush Bar / Agitator Bearings to suit Dyson DC04, DC07, DC14, DC27 & DC33 models  with clutch control brush bar type. THESE BEARINGS ARE APPROXIMATELY 16mm DIAMETER - The bearings for the clutch control model are approximately 16mm diameter (whereas the bearings for the non-clutch model are approximately 22mm diameter), so please check this PRIOR to making your purchase. If you are still unsure whether your Dyson has clutch brush bar control or not, please  send me a photo of your Dyson taken from the same angle as one of the photos in  this listing.