Medium bristle material (fine work) and does not absorb chemicals.The most common and most needed brush for auto detailing.Great for use on interior and exterior.The character of the bristles which are strong and smooth make it easy to remove medium stains and dirt effectively, quickly and cleaner.Best used for Ventilation grilles (AC), ceilings, vinyl, dashboards, fabric, leather & synthetic, plastic trim, rubber, tires, wheels, engines, emblems, mica.