Uni-ball Eye Micro Ub-150 Gel Ink Pen - 0.5 Mm - 10 Pcs - Uni Mitsubishi Pencil (Black) 100% made in Japan by Mitsubishi Pencil Co.Ltd. Stainless-steel tip with tungsten carbide ball. Micro 0.5mm tip.The see through ink barrel lets you see how much ink is left. High-quality and reliable rollerball featuring waterproof pigment ink and 'Uni-Flow' system to ensure a continuous consistent write to the last drop. User friendly,safe and comfortable to use.