Andrew Mack Glawson/Mack Ultimate Extra Long Striper Series 1644Sizes #00- #1 OR Set of All ThreeWood handleBrass ferrulePure blue squirrel hair.This brush is shaped like a fast-lite striper.All sizes have a hair length out of 2 1/4″.This striper can be used with either lettering enamel or urethane paint. They are great for long thin lines.