Rollerball For Ultra-Fine Writing Results. With Conical Tip Made From Wear-Resistant Stainless Steel, Line Width Approx. 0.3 Mm, Writing Colour Green. The Cap-Off Ink Does Not Run Dry Even If The Cap Is Removed For 2-3 Days. The Barrel Parts Are Made From Anti-Evaporation Pp For Long-Term Shelf-Life.