Uni Jetstream x Karimoku 4&1 Multi Pen Steel Blue

The Uni Jetstream x Karimoku 4&1 is a multi pen created through the collaboration between Uni’s advanced writing technology and the refined Japanese craftsmanship of Karimoku, a historic furniture maker specialized in wood. This project brings together high performance, material care, and understated design, resulting in a writing instrument designed for everyday use yet distinguished by quality and character.

The 4&1 format combines four ballpoint pens and one mechanical pencil into a single, well-balanced body, offering a practical and versatile solution for those who prefer an all-in-one writing tool. The four ballpoint refills allow easy color switching, while the 0.5 mm mechanical pencil completes the pen, making it suitable for notes, work, and planning.

The Steel Blue version features a deep, understated blue tone with a modern and refined character. This balanced and elegant color enhances the Karimoku wooden grip, crafted from selected reclaimed wood from furniture production. The surface feels natural and comfortable in the hand, with subtle grain variations that make each pen unique.

The ballpoint pens are equipped with the renowned Uni Jetstream ink, known for its exceptional smoothness and fast-drying performance. Writing feels fluid, clean, and well defined, making it ideal for precise everyday use and extended writing sessions.

The Uni Jetstream x Karimoku 4&1 Multi Pen Steel Blue is designed for those seeking a reliable, elegant, and functional writing tool, combining Japanese design sensibility, sustainable material choices, and consistently high writing performance.

The pen is refillable with Uni Jetstream SXR-L80-05 refills, ensuring the same smooth writing experience over time. The compatible refill is available on our dedicated page: Uni Jetstream SXR-L80-05.