Japanese Calligraphy Brush 2pc Set. Thick & Slender Japanese Calligraphy Brush 2pc Set. Thick & Slender Thick Calligraphy Brush with Wool Bristles Soft resilient tip absorbs and retains ink well, and provides a smooth writing experience The moderate resilience of the brush hair enables you to write small letters very easily Thick Brush Material: Goat Hiar, Stem: Wood, ABS Resin. Slender Brush Material: Goat Hair, Horse Hair, Stem: Bamboo, ABS Resin