Shakyō Brush Small (Shūhitsudō)

Suitable for copying sutras. Copying sutra brushes are different from regular fine brushes. A distinctive feature of copying sutra brushes is the bulging brush head (the belly of the brush is bulging), which allows them to hold ink well and write for long periods of time.
In addition, the tip of the brush is very effective, allowing you to create delicate lines.