uniball ZENTO 3-Color Ballpoint Pen / uni Mitsubishi Pencil

The uniball ZENTO is a 3-color water-based ballpoint pen built around newly developed ZENTO ink, which cuts friction resistance by roughly 40% compared to conventional formulas. A cushion surfactant keeps lines clean while attraction particles stop ink from spreading or bleeding through. The barrel is intentionally shorter so your fingers land naturally at the knock button without shifting your grip.