Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Technical Pens
Origin	-
Brand	Uni Mitsubishi
Line Widths Included	0.05mm, 0.1mm, 0.3mm
Ink Type	Waterproof Oil-Based
Ink Color	Black
Tip Material	Stainless Steel
Country of Origin	Japan
Ideal For	Manga, Technical Drawing, Sketching
Cap Type	Snap-on with Air-tight Seal
Barrel Design	Hexagonal for Roll Prevention
Package Contents	3 Pens per Set

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Smooth and reliable

I've tried many fine liners, but Uni Pin is my go-to. The flow is smooth, no skipping, and the cap seals tightly so the pens don't dry out even if left uncapped for a few minutes.

Anonymous

Mar 23, 2026

Rating: 5/5

Student essential

Bought these for my architecture class. They handle detailed drafting perfectly. The hexagonal barrel is a nice touch as it stops them from rolling off the desk constantly.

Anonymous

Mar 18, 2026

Rating: 5/5

True black ink

The black is very deep and opaque, which looks great when scanning artwork. The 0.1mm is my favorite size for general outlining. Will definitely repurchase.

Anonymous

Mar 10, 2026

Rating: 4/5

Great quality, wish there were more sizes

Excellent pens for technical drawing. The lines are crisp and dark. I only gave 4 stars because this specific set only has three sizes; I usually need a 0.5mm as well for broader strokes.

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect for intricate manga work

The 0.05mm tip is incredibly fine and consistent. I use these for my comic book inking, and the waterproof ink means I can watercolor over them without any smudging. Highly recommended for serious artists.

Anonymous

Mar 05, 2026

Rating: 4/5

Good value set

Solid pens for the price. The 0.05mm requires a gentle hand, but once you get used to it, the precision is unmatched. Good for stippling techniques.

5 FAQ

Q: Do these come with a carrying case?

A: This specific 3-piece set does not include a carrying case; they are packaged in a standard blister pack or box depending on the retailer.

Q: How long do the pens last if used daily?

A: Lifespan varies by usage intensity, but with daily moderate use, a single pen typically lasts several months before the ink runs out.

Q: Are these pens safe to use on photo paper?

A: Yes, these oil-based pens work well on most paper types, including photo paper, without bleeding or feathering.

Q: Can the ink be erased with a standard eraser?

A: No, the ink is permanent and waterproof once dry. It cannot be erased with standard erasers.

Q: Is the 0.05mm tip durable enough for rough sketching?

A: The stainless steel tips are durable, but the 0.05mm is very fine. We recommend using it for final inking rather than rough sketching to prevent tip damage.

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