This is a rare brush made with deer hair. For reference, the sizes are as follows: Large: Length 6.3cm x Diameter 1.3cm Medium: Length 5.5cm x Diameter 1.2cm Small: Length 4.2cm x Diameter 1.1cm A set of 2 is available for 2300 yen. Discounts are available when purchased with other brushes. Other calligraphy supplies are also on sale. We would appreciate it if you would follow us and take a look.