MasterChinese Large Chinese Calligraphy / Watercolor / Drawing / Kanji (Wolf + Goat Hair) - Practice Brush Great practice brushes. Hair length: 9cm (3.5) Diameter 2.3cm (.9) Jian Hao (Goat + Wolf hair). Shaft: bamboo See size comparison with a CD/pen in the photo (not included) Also available: wolf hair (ASIN B00IR6AER8) and goat hair (ASIN B00IR637D6)