Grumbacher Black Diamond Filbert Oil and Acrylic Brush, Hog Bristle, Size 8 (1274T.8) Non-slip, soft black handle offers better brush control and reduced hand fatigue A perfect compromise between rounds and flats - shaped like a flat with a curved end, allowing for more flexibility than a flat The side can be used like a round and the broad side like a flat Unbleached, undyed, natural black hog bristle is slightly more flexible than a traditional Chungking hog bristle Professional-grade brush