Mack 189L Grey Squirrel (Talahoutky) Lettering Quills are handmade in France & Germany and it is equally as important as the brown squirrel quill as an essential brush for the sign painter. This is a universal lettering brush. The grey hair has more snap than the brown. It is used for general commercial work such as signs, truck lettering, boats, etc. The grey hair is more durable than the brown, and this brush is suitable for lettering on most surfaces. They come with black lacquered handles.