Pilot Drawing Pens, Pack of 6 Assorted Tip Sizes (0.05mm-0.8mm), Red Ink(Japan Import) [Komainu-Dou Original Package] Handwriting width: 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.5mm, 0.8mm Ink Color: Red Aqueous pigment ink. Water resistance and light resistance is excellent. Drafting, design and securities for the pen.