Mack Brush Series 39 Size 2, Jenson's Swirly-Q Scroll/Script Brush, Length Out 1-11/16" "The Jenson's Swirly Q brush is designed for scroll striping and script lettering with enamel based paints. Scroll striping requires thinner paint, if mineral spirits were to be used the paint would run easier. I recommend using a slow drying automotive reducer for enamel based paints, these can be purchased at your local auto-body supply. Clean brush thoroughly with reducer before and after each use (do not use lacquer thinner!). Be sure to store your brush in mineral oil between uses." - Gary Jenson