Pilot Hi-Tec-C 025 Gel Ballpoint Pen, 0.25mm Ultra Fine, 10 Color Set (Japan Import) [Komainu-Dou Original Package] Ink color: Black, Red, Blue, Green, Blue black, Pink, Orange, Violet, Light blue, Brown (Total 10 color) Tip size : 0.25 mm. Writing line width: 0.13mm 3-point support system nib. Biopolymer ink. Superior technology for ultra extra fine pen. Ink comes out smoothly from the pen tip.