Namurataiseidou Calligraphy Brush, Bamboo Daruma Handle, Senju (Light Hair), Size 6

A good brush has four virtues: "Sharp," "Sai," "En," and "Ken." "Sharp": The tip is sharp and well-defined. "Sai": The tip is neatly trimmed and evenly aligned. "En": The entire tip is a regular, conical shape with no cracks. "Ken": Durable, strong, 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 ink off the tip with water, rubbing it gently with your hands.

(From Amazon.co.jp) Brush Diameter: 18.0mm Brush Length: 60.0mm Brush Tip Material: Wool, Tenbi Hair Shaft Appearance: Bamboo shaft, Daruma Hardness: Medium Hard