OHTO Refill – C-305 Ceramic Rollerball – Extra Fine (0.5mm)

OHTO Refill – C-305 Ceramic Rollerball  – Extra Fine (0.5mm) Ceramic-ball roller refill for OHTO rollerball pens and others.   High-quality liquid ink refill. The ceramic ball gives noticeable ‘bite’ to the writing style, quite unlike regular roller ball tips. Available in a range of tip sizes: Fine C-305 0.5mm tip Extra-Fine C-304 0.4mm tip Medium C307 0.7mm tip Broad C-310 1.0mm tip