Set of 9 Raphael mix media brushes Set of natural and synthetic hair brushes, with long and short handles, ideal for mix media. Ideal for oil, gesso and acrylic. Sizes: - Plans nº 6, 14, 18. - Rounds no. 2, 10, 14. - Brushes 30mm, 40mm, 50mm. The length and width of a brush of a given shape and size may vary by manufacturer, as brush sizes are not standardized. Since fine art brushes are handmade, there may be some variations even between brushes within the same line. Brand: Raphael.