Crafted with care and shaped by hand, this oil and acrylic brush has a flexible hair bundle resistant to wear. The Chungking hog bristle hair bundle of this brush has a natural hardness and long flags enabling the paint to soak. An ideal brush for less dense oil painting technique and acrylic. The brushes have a flat (Gussow) shaped hair bundle to create sharp edges and straight lines. The hair bundle widths of the brushes included are 4.2 mm, 4.5 mm and 6.3 mm.