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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Uni Jetstream EDGE 0.38mm Oil-based Ballpoint Pen, Black Red Body (SXN100338BK15)

Uni Jetstream EDGE 0.38mm Oil-based Ballpoint Pen, Black Red Body (SXN100338BK15)

Product ID: 424127693

Details

Age range (description)
Adult
Brand
uni
Colour
Blue Red Black
Ink colour
Black
Item dimensions L x W x H
12 x 11 x 143
Material
Metal Plastic

🔄Refillable with SXR-203-28 cartridges

⚙️Hybrid oil-based ink for smooth flow

🖊️0.38mm ultra-fine tip

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KD 10.57

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Sold byAmazon KUWAITDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖋️ Write sharp, write smooth — the pen that means business.

ERGONOMIC METAL GRIP - Designed for comfort and control, the weighted metal grip focuses your writing energy where it counts.
SILKY SMOOTH HYBRID INK - Enjoy the perfect blend of oil and water-based ink that glides effortlessly without smudging.
DURABLE STYLISH DESIGN - A sleek black-red body with metal accents that survives everyday hustle and looks sharp on your desk.
REFILLABLE SUSTAINABLE - Keep your pen going strong with easy-to-find refills, reducing waste and boosting your eco-cred.
PRECISION AT YOUR FINGERTIPS - Experience razor-sharp 0.38mm lines for impeccable legibility and professional notes.

The Uni Jetstream EDGE 0.38mm is a premium oil-based ballpoint pen featuring a fine tip for precise writing, hybrid ink technology for smooth, consistent flow, and a refillable design. Its ergonomic metal grip and stylish black-red body combine durability with modern aesthetics, making it a top choice for professionals seeking both performance and flair.

Specifications

ASIN	B08WPQ9NZQ
Age Range Description	Adult
Animal Theme	no animal theme
Best Sellers Rank	419,384 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 6,515 in Retractable Ballpoint Pens
Body Shape	Cylindrical
Brand Name	uni
Closure Type	Click-Off Cap
Colour	Blue,Red,Black
Customer Reviews	4.3 4.3 out of 5 stars (610)
Drill Point	Fine
Grip Type	Knurled
Included Components	Refill
Ink Base	Hybrid
Ink Colour	Black
Is the Product Left or Right Handed?	Ambidextrous
Item Diameter	11 Millimetres
Item Dimensions	12 x 11 x 143 millimetres
Line Size	0.38mm
Manufacturer	Uni
Material Type	Metal, Plastic
Model Name	ジェットストリームエッジ
Model Number	SXN100338BK15
Recommended Uses For Product	Writing
Special Features	Refillable
Style	Modern
Water Resistance Level	Not Water Resistant
Writing Instrument Form	Ballpoint Pen

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