Pen Refills: Uni UMR 38S
 
Product Features:
High-quality shaft specifications
It is a smooth design with as few irregularities as possible. The metal tip provides a stable writing feel.
Ink with new pigment
Unlike general gel ink, it uses a new pigment that minimizes the penetration of color materials into paper fibers. The pigment used in "Uniball One Ink" is a bead pack pigment originally developed by enclosing a conventional coloring material in particles. By enclosing the pigment, which is the color material of the ink, in the particles and increasing the size of the particles, the penetration of the color material into the paper surface is suppressed as much as possible. As a result, the coloring material on the paper develops the original color, and black develops a deeper color. You can write letters that are easy to impress when you look back at the notebook.
Ink that dries quickly without bleeding
By changing the ratio of the solid and liquid components in the ink, it is possible to quickly penetrate the liquid component into the paper while leaving the solid color material on the paper. Although it is a quick-drying ink that penetrates quickly into the paper surface, it does not bleed or strike through because it suppresses the color material from being absorbed by the paper surface.
Simple and straight shaft design
The shaft design is simple and straight. In addition to its stylish design, the oval-shaped "open wire clip" is a movable clip that can be easily clipped into a notebook or notebook, and is also functional.
Axis color that you can feel the story
It is a discerning axis color selected under the theme of "fated color x everyday casual scenery and color".
 
Product Specifications:
Ball diameter: 0.5mm
Body dimensions: Shaft diameter Φ111 x Thickness 15.5 x Overall length 139.2mm
Body weight: 14.4g
Ink color: Black