Princeton’s white synthetic-hair brushes are the industry standard for fluid acrylic and ink. Excellent snap and a fine point allow for a consistent release of color with greater control. Summit’s blend of hair is stiffer than a traditional watercolor brush, but not as stiff as Princeton's Umbria or Catalyst which makes it just right for fluid applications. This 4-brush set includes Bright 4, Flat 8, Filbert 6 and Round 1.Details:Set of 4 brushesSturdy ferruleAssortment of shapes and sizes includedVersatile