Uni was established as a brand by writing tool maufacturer Mitsubushi Pencil, which was formed in 1887, and went on to create the first rollerball pen with a metal tip in 1979. The Uni brand provides a variety of different writing companions to suit the needs of casual, study, and professional use, with a range that includes premium rollerball pens, ballpoint, pens, mechanical pencils, markers, highlighters, and more.