Mitsubishi Jetstream 4&1 Multifunction Ballpoint Pen

The Mitsubishi Jetstream 4&1 Multifunction Ballpoint Pen is the sort of instrument that makes one wonder why we ever carried several pens at once. Combining four ballpoint colours — black, red, blue, and green — with a built-in mechanical pencil, it places five essential functions neatly into a single, streamlined barrel.

At its heart is the celebrated Jetstream low-viscosity oil-based ink, delivering an exceptionally smooth writing experience with impressively quick drying. Lines appear dark and crisp, yet the pen glides lightly across the page — ideal for notebooks, planners, lecture notes, and business documents alike.

Switching between functions is swift and intuitive, making colour-coding and structured note-taking feel effortless rather than fussy. The integrated mechanical pencil (available in 0.38mm, 0.5mm, or 0.7mm lead options) adds drafting precision without adding bulk to your bag.

For students, professionals, and anyone who prefers travelling light, this is intelligent design distilled into one dependable writing companion.

What Makes It Work So Well

• 4-in-1 Functionality: Four ballpoint colours plus a mechanical pencil in one compact pen.

• Jetstream Smoothness: Ultra-low viscosity ink ensures fluid writing and quick drying performance.

• Effortless Switching: Designed for rapid colour changes and organised note-taking.

Details

• Line Size Available: 0.38mm, 0.5mm, and 0.7mm
  
• Materials: Resin, Low-friction Jetstream ink
  
• Country of Origin: Japan