What refill can I use?

You can use Jetstream Edge refills or Jetstream Multi refills. I don’t buy them on Amazon. Not sure if I can say this but I buy them from Tokyo Pen Shop online

How do I replace the ink pens

Pull from the grip down, without twisting to expose the cartridges, then pull the cartridge you want to replace out.

How can I get the .38mm refills for this and will they fit in this pen?

Uni SXR-80-38 fits this pen and is in the 0.38mm size (hence the “38” at the end).

Is there a way to tell which tip you are selecting?

only if the refill is the .28 - the .38 & .5 refills look alike but write differently

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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三菱鉛筆 uni Jetstream EDGE 0.38mm Oil-based Ballpoint Pen, Black Red Body (SXN100338BK15)

Product ID: 367474108

Details

Age range (description)
Adult
Brand
uni
Colour
black
Ink colour
Black
Writing instrument form
Ballpoint Pen

🔄refillable with SXR-203-28 cartridges

🖊️0.38mm ultra-fine ball tip

🛢️oil-based hybrid Jetstream ink

Description

🖋️ Write sharp, write smooth—own the edge in every stroke!

SILKY SMOOTH FLOW - Jetstream hybrid ink glides effortlessly, reducing hand fatigue during long writing sessions.
ERGONOMIC METAL BODY - Sleek, modern metal design with knurled grip ensures comfort and professional style.
ULTRA FINE PRECISION - Experience razor-sharp 0.38mm lines for flawless small print and detailed notes.
VERSATILE INK OPTIONS - Choose from black, red, or blue refills to match your mood or meeting needs.
REFILLABLE SUSTAINABLE - Keep your pen going with easy-to-swap refills—eco-friendly and cost-effective.

The uni Jetstream EDGE 0.38mm ballpoint pen combines ultra-fine precision with smooth oil-based hybrid ink technology, housed in a sleek metal body. Designed for professionals who demand clarity and comfort, it features refillable cartridges and a knurled grip for enhanced control. Perfect for detailed writing, this pen elevates everyday note-taking into a refined experience.

Specifications

ASIN	B08WPQ9NZQ
Additional Features	Refillable
Age Range Description	Adult
Animal Theme	no animal theme
Best Sellers Rank	#12,584 in Office Products ( See Top 100 in Office Products ) #241 in Retractable Ballpoint Pens
Body Shape	Round
Brand Name	uni
Closure Type	Retractable
Color	black
Customer Reviews	4.3 4.3 out of 5 stars (643)
Drill Point	Fine
Grip Type	Knurled
Hand Orientation	Ambidextrous
Included Components	Refill
Ink Base	Hybrid
Ink Color	Black
Item Diameter	0.38 Millimeters
Item Dimensions	12 x 11 x 143 millimeters
Line Size	0.38 Millimeters
Manufacturer	Uni
Material Type	Metal
Model Name	SXN100338BK15
Model Number	SXN100338BK15
Recommended Uses For Product	Coloring,Writing
Style	Modern
Unit Count	1 Count
Water Resistance Level	Not Water Resistant
Writing Instrument Form	Ballpoint Pen
Writing Technique	ballpoint

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