Uni Multi-Pen Jetstream EDGE3 black (0.28 mm)

The Jetstream EDGE3 by Mitsubishi Uni is a three-colour multi-pen with oil-based 0.28 mm ballpoint – the finest line width ever achieved in an oil ballpoint pen. The line width is significantly narrower than the typical ballpoint range and approaches the fine stroke of a fineliner. Each colour – black, blue, red – is activated by a simple twist of the top push button. The plastic and metal barrel feels sleek and cool in the hand, with a diameter of just 10.8 mm.

Features

• 0.28 mm oil-based ballpoint: The line width enables extremely fine, clean lines – ideal for tight grids, tiny writing and technical notes where every line counts.
• Three colours in one pen: Black, blue and red can each be activated via the twist knob – no searching, no pen changes, no interruptions.
• Low-viscosity Jetstream ink: The oil-based ink flows smoothly and with noticeably less pressure than conventional ballpoints – the line starts immediately, without initial spots or skips.
• Document-permanent, water-resistant, light-resistant: The ink is suitable for documents, contracts and signatures – neither water nor light affect the writing subsequently.
• Replaceable refills: The front section can be removed to easily exchange individual refills (model SXR-203-28) – no tools required.
• Compact metal barrel: 10.8 mm diameter and 142 mm length with plastic-metal construction – light enough for extended writing sessions, sturdy enough for daily use.

Use & Tips

• Tight grids & tiny writing: The 0.28 mm ballpoint is ideal for calendars, bullet journals and planners with tight line spacing – lettering remains legible even when space is limited.
• Three-colour marking system: Black for body text, red for priorities, blue for additions – you can switch directly in the pen without taking your notebook out of your hand.
• Technical drawings & annotations: The precision of the line width makes the pen suitable for technical sketches, measurements or small labels in diagrams.
• Signatures on documents: Thanks to the document-permanent, water-resistant ink, the pen is suitable for legally binding signatures – the line sits cleanly even on coated or smooth paper.
• Refill management: Since each colour can be replaced separately, the pen can be used long-term – simply replace the most-used colour first.

For Ballpoint Enthusiasts

Jetstream ink works with a low-viscosity oil-based formula that delivers an unusual combination: the writing smoothness of a gel refill with the dryness resistance and document-permanence of an oil ink. The 0.28 mm tungsten carbide ball in the EDGE3 is the smallest ball size in the Jetstream system to date – this puts the line in a category that many fountain pens with extra-fine nibs only achieve with optimal ink flow. Those writing with oil-based ink on smooth, calendered paper will notice that the EDGE3 barely feathers and the ink dries almost instantly.

Technical Specifications