This specialty "Gongbi" liner brush is a combination of stiff and soft hairs made by Master Xu Laosan in Nanjing, my home town.  

The sheep soft hair on the outter layer serves as reservoir and the rat whisker stiff hair core with Long and pointed tip make it a superb outliner brush in elaborated gongbi style painting. Also good for free-style drawing and sketching.  

Brush Tip: 1 3/16" (3cm), 3/16"(0.4cm) diameter ; Handle:  9 7/16" (24cm)

*Inscription says "Jingzhi Gongbi" (Refined detail brush) and "Xu Laosan" the brush maker.

(limitted edition specialty brush)