This Mitsubishi Uniball UB150 pens, which are rollerball pens with fine tips and liquid ink. The Mitsubishi Uniball 150 writes with highly secure, water-resistant ink that will not fade over time. This pigment ink therefore protects against document tampering. Enabling fluid, skip-free handwriting, this liquid ink is fast drying so prevents messy smears and smudges. The Mitsubishi Eye rollerball pen has a 0.5mm tip for ultimate precision and performance. Producing a smooth 0.2mm line, this Uniball pen is ideal for everyday writing tasks and detailed work. It features a special ink flow system to ensure a continuous flow of ink right down to the last drop, making this a pen you can rely on. With a handy ink level window to alert you when ink levels are low, the Mitsubishi Uniball UB150 is ideal for general use at school, home or the office.