This flashy, lifelike, breathable brush is made entirely ofEPTHUNDERSTRUCK SPARKLE; a very similar material toEPSPARKLEbut slightly stiffer and with a kink cut (like a thunderstruck effect!). It can be used in many ways, and in combination with others brushes or withEPFIBERS. It is also very permanent marker friendly so you can give a custom accent to any fly. Used mainly for collars and full dress fly patterns.