**Feature** Durable， brush-like tip Water-based dye ink Ideal for sketching and drawing Size:Pack of 1 Pentel Arts Sign Pen Brush Tip， Black Ink 1-Pk Pentel Co.， Ltd. is a privately held Japanese company which produces stationery products. The name is a combination of the English words pen and tell. Pentel is also the inventor of non-permanent marker technology.