OHTO Refill – F-300 Fude Brush Calligraphy for Rollerball Pens

OHTO Refill – F-300 Fude Brush Calligraphy for Rollerball Pens  OHTO F-300 Fude Refill. Specially imported from Japan, a rare euro-format fude pen refill. Allows you to turn any capped rollerball pen that takes this refill format into a fude brush pen! Available with black ink only. Not suitable for use with capless rollerball pens. 115mm long, 6.2mm diameter.