The new “Jetstream 4&1” has been added to the "Uni Jetstream” series, which is popular among members of society because of its sleek and smooth writing. With recent changes in work styles and work environments, business people who are the main target of “Jetstream 4&1” are able to improve their favorite colors and moods without being aware of the on / off status of formal and informal work. Customers who want to use colors on a daily basis are on the rise. The newly released “Jet Stream 4&1” series is available in casual colors with the same color for the shaft and grip. In addition to the conventional lineup that has been developed as a standard product, we offer a wide range of options to meet a wide range of business person preferences that are changing as the business scene diversifies.