A good brush has four virtues: "Sharp," "Sai," "Round," and "Healthy."
"Sharp": The tip is sharp and well-defined.
"Sai": The tip is neatly trimmed and evenly aligned.
"Round": The entire tip is a regular, conical shape with no cracks.
"Healthy": Strong, resilient, flexible, and resilient.
Namura Taiseido calligraphy brushes are crafted individually by artisans to possess these four virtues.
After use: To prevent ink buildup at the base, which can lead to rot or breakage, rinse the tip with water, rubbing it gently with your hands.
(From Amazon.co.jp)
Brush Diameter: 24.0mm
Brush Length: 80.0mm
Brush Tip Material: Wool (red dyed), sheep's wool
Shaft Appearance: Wooden shaft, Daruma
Hardness: Medium-soft