The 8000 Series from Richeson is a blend of two diameters of synthetic fiber making a very impressive quality watercolor brush.  This is a series that gives the best of both worlds–great quality and a great price.  The rounds are full bodied and come to a needle point, and the flats form a nice edge when wet.  Most impressive of all, we are selling all of these for just $2.00 each, no matter the size or shape!