I probably have about 12 rigger/liner brushes. The problem with most id that they are soft. There are no art shops in my town so I must buy brushes (and paint) online so I cannot fell the bristles. I was looking for a brush to paint watercolor trees, especially branches. The soft bristles do not give me the control I wanted. This Brush is perfect. The bristles snap back and hold a good bit of paint. I purchased the size 4 and 6 which is perfect.
KINGART Premium Original Gold 9100-1/4 ONE Stroke Series Artist Brush, Golden Taklon Synthetic Hair, Short Handle, for Acrylic, Watercolor, Oil and Gouache Painting, Size 1/4″Princeton Aqua Elite Paintbrush, Size 1/2 inch, Matte Black