Pilot Hi-Tec-C Coleto Gel Ink Pen Refill 0.4mm, Pink, 3 Packs/total 3 pcs (Japan Import) [Komainu-Dou Original Package] Go to amazon.com Related posts The 10 best 3 0.4 for 2022 FeaturePen tip diameter: 0.4mmInk: Water biopolymer inkSystem: Slide lever typeInk Color: Pink DescriptionPen tip diameter: 0.4mm. Ink: Water biopolymer ink. System: Slide lever type. Ink Color: Pink