This Mitsubishi Uniball SXN150 Jetstream is a Rollerball pen that has a 1.0mm nib The Mitsubishi Uniball SXN150 Jetstream is a retractable pen and is the fun one in the family! This latest addition is once again smooth, fast drying, smudge free and finished with a funky design. It writes with highly secure, water resistant ink that will not fade over time. This pigment ink therefore protects against document tampering. The Mitsubishi Rollerball pen has a 1.0mm nib for ultimate precision and performance. 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. The Mitsubishi SXN150 is ideal for general use at school, home or the office