uni-ball is a globally recognized Japanese brand of writing instruments, produced by Mitsubishi Pencil Co., Ltd. Established in Tokyo in 1887, the company introduced the first uni-ball rollerball pen in 1979, pioneering water-based ink with a metal tip. Known for innovation, uni-ball offers a diverse range of pens and pencils, including the popular Signo gel pens, Jetstream hybrid ink pens, and Kuru Toga mechanical pencils with rotating lead technology. Their products are celebrated for quality, durability, and smooth writing experiences, making them a favorite among professionals, students, and creatives worldwide.