Mitsubishi Pencil (Uni-Ball) Jet Stream Color Ink 0.5

Equipped with the world's first epoch-making newly developed ink that realizes "a habit of smooth writing", "JETSTREAM" has lower writing speed than existing oil-based ballpoint pens. Achieves a smooth writing taste with resistance.
By combining new color materials and pigments, we have achieved a black density that is approximately twice that of conventional inks (black ink).
The newly developed ink easily soaks into paper and dries very quickly. It reduces the stress that is common with conventional oil-based inks, such as touching the drawn lines and getting your hands dirty.
Built-in spring tip to support new smooth, low-viscosity ink. By pressing the ball on the pen tip, the direct current of ink (leakage from the pen tip) was prevented. In addition, the twin ball mechanism prevents backflow of ink (ink flows against the pen tip).