Set of 8 Brush Attachment for Cordless Screwdriver 3 Hardnesses: Soft brushes (white) for carpets glass leather... Diameter: 5cm/10cm, Medium Brushes (Gray) for daily cleaning kitchen bathroom pans tiles...Diameter: 5cm/10cm/13cm/9cm, Hard Brushes ( Black) for grill cement floor ... Diameter: 5cm/10cm for all Surfaces