Uni-ball One gel pen

*This new gel ink ballpoint pen features newly developed gel ink and a simple, straight shaft design.
*Black is darker and colors are more vivid because the pigment ink does not penetrate the paper more than necessary.
*The lines are clear and assertive when you look back at your notes and memos.
*Crease the size of the lines when you look back at notes or memos.
*It is also ideal for memorization notebooks and other study materials that you want to keep in your memory.
*Oval shaped [Open Wire Clip] is not only stylishly designed but also functional with a movable clip that can be easily inserted into notebooks and organizers.