Retail is $4.50 each... Brushes used with underglazes and glazes. Wash thoroughly with AS 952 Duncan Brush Cleaner after use. Be sure that all color particles are removed from the area near the metal ferrule. Brushes used with overglazes. Clean brushes only with Duncan OA 901 Essence. Any other agent may contain water or solvents that will cause separation of the overglaze during the next application. Designate one specific brush for use with each particular overglaze to avoid contamination of the overglaze. Brushes used with water-based nonfired products. Wash thoroughly with AS 952 Duncan Brush Cleaner after each use. A good cleaning in Duncan Brush Cleaner should loosen any dried particles of paint and remove color stain. Brushes used with oil-based nonfired products. Wipe excess color onto paper towel. Clean brush wth AS 952 Duncan Brush Cleaner.