Kuretake Brush Calligraphy Horse Hair Sheep Hair Calligraphy Brush Hair Quality: Horse Hair, Sheep Hair Features of Brown Hair: It has elasticity and allows for lively lines. Recommended for writing Kaisho (block script). Features of White Hair: The tip of the brush is well-formed, has good viscosity, and allows for supple and soft lines. Recommended for Gyosho (semi-cursive script) and Sosho (cursive script). *Please note that there may be slight variations in size. We are selling these at a discounted price, below the list price. Please give them a try.