Namurataiseidou Calligraphy Brush, Fine Brush, Kana Writing Brush

A good brush has four virtues: "Sharp," "Sai," "Round," and "Healthy." "Sharp": The tip is sharp and well-defined. "Sai": The tip is neatly shaped and even. "Round": The entire tip is a regular, conical shape with no cracks. "Healthy": Durable, strong, flexible, and resilient. Namura Taiseido calligraphy brushes possess these four virtues, and are individually crafted by artisans. 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: 9.0mm Brush Length: 32.0mm Brush Tip Material: Weasel Hair Shaft Appearance: Bamboo, Single Rib Hardness: Medium Hard