Can I use watercolor over XWT fineliners?

Yes. Once dry, the pigment ink is waterproof and the listing says it does not smear under watercolor, markers or acrylics.

Which sizes are in the XWT fineliner set?

0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.55, 0.75, 1.0, 2.0 and 3.0 mm, plus a brush marker.

Are XWT fineliners waterproof?

Yes. XWT describes the black pigment ink as waterproof, sunproof and acid-free once it has dried.

What paper works with XWT fineliners?

The listing names watercolor paper, tracing paper, vellum and mixed media surfaces.

How do I make fineliner tips last?

The listing does not give care instructions. As general practice, use light pressure on the fine sizes and recap each pen after use so the tip does not dry out.

XWT 12+1 Fineliner Micro Drawing Art Pens Set

Widest tip range

XWT

XWT Fineliner Set (13 Pens)

Twelve black fineliners from 0.15 mm to 3.0 mm plus a brush marker, with waterproof, quick-drying pigment ink that will not smear once dry.

Best for: Comic, manga and line artists who ink over watercolor or markers

Pens: 13
Tip range: 0.15 to 3.0 mm plus brush
Ink: Pigment, waterproof
Case: Reusable

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Buy it if

You want many line weights in one set, from hairline detail to bold 3.0 mm outlines
You ink first and color afterwards with watercolor, markers or colored pencil
You want a brush pen for lettering and thick-to-thin strokes in the same kit

Skip it if

You want colored line work. Every pen in this set is black
You only need a handful of common fine sizes. The Sakura Pigma Micron (6-Pack) covers 005 to 08 in six pens

What the XWT Fineliner Set (13 Pens) is

The XWT Fineliner Set is a 13-pen kit of black drawing pens: twelve fineliners with nib sizes from 0.15 mm to 3.0 mm, plus a brush marker for expressive strokes. Each pen has its nib size printed on the body, so you can grab the right line weight without testing it first.

The ink is a water-based pigment ink that XWT describes as quick-drying, waterproof, sunproof and acid-free. Once it is dry it does not smear, so you can ink a drawing first and add watercolor, markers or colored pencil on top.

Key features, explained

Based on the manufacturer's Amazon listing.

12 nib sizes plus a brush
The set covers 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.55, 0.75, 1.0, 2.0 and 3.0 mm, plus a brush marker marked BR. That is enough range for fine hatching, outlines and solid fills.
Sizes printed on every pen
Each barrel shows its nib size, with codes such as 003, 005, 01 and 08 next to the millimetre size, so the pens are easy to sort and put back.
Waterproof pigment ink
XWT describes the ink as waterproof, sunproof, acid-free and non-toxic. The listing adds that it does not smear, ghost or bleed through paper.
Works with watercolor and markers
Use the pens before or after watercolor, colored pencils, markers or acrylics. The listing says the ink will not smear once dry.
Nylon nibs with controlled flow
The nylon nibs are made for smooth, skip-free lines on watercolor paper, tracing paper, vellum and mixed media surfaces.
Reusable storage case
The pens come in a plastic case that keeps them together for school, the studio or travel.

XWT Fineliner Set (13 Pens) specifications

Pens: 13 (12 fineliners + 1 brush marker)
Nib sizes: 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.55, 0.75, 1.0, 2.0, 3.0 mm + brush
Ink: Water-based pigment, black
Waterproof: Yes, once dry
Other ink claims: Quick-drying, sunproof, acid-free, non-toxic
Nib material: Nylon
Surfaces: Watercolor paper, tracing paper, vellum, mixed media
Storage: Reusable plastic case
Size markings: Printed on each pen

Who the XWT Fineliner Set (13 Pens) suits

Comic, manga and line artists. Fine sizes handle hatching and detail, while 2.0 and 3.0 mm pens fill in bold shapes and borders.
Watercolor and marker artists. Ink your drawing, let it dry, then paint or color over it without the lines running.
Journalers and hand letterers. The brush marker adds thick and thin strokes for headings, and the fine pens handle notes.

Look elsewhere if: you only need six fine sizes. The Sakura Pigma Micron (6-Pack) has sizes 005 to 08 with archival pigment ink.

XWT Fineliner Set (13 Pens) vs similar picks

Spec	XWT Fineliner Set (13 Pens)	Sakura Pigma Micron (6-Pack)	Muchcute Micro Fineliners (12-Pack)
Pens	13	6	12
Sizes	0.15 to 3.0 mm plus brush	005, 01, 02, 03, 05, 08	0.2 to 3.0 mm plus brush
Ink	Pigment	Pigma pigment, archival	Archival pigment
Waterproof	Yes	Yes	Yes
Choose it for	The widest size range	A classic archival brand	A similar range in 12 pens

XWT Fineliner Set (13 Pens)
Pens
13
Sizes
0.15 to 3.0 mm plus brush
Ink
Pigment
Waterproof
Yes
Choose it for: The widest size range
Sakura Pigma Micron (6-Pack)
Pens
6
Sizes
005, 01, 02, 03, 05, 08
Ink
Pigma pigment, archival
Waterproof
Yes
Choose it for: A classic archival brand
Muchcute Micro Fineliners (12-Pack)
Pens
12
Sizes
0.2 to 3.0 mm plus brush
Ink
Archival pigment
Waterproof
Yes
Choose it for: A similar range in 12 pens

Before you buy

The listing gives no care advice. As a general habit, light pressure is kinder to the finest fineliner tips.
Let the ink dry fully before you paint or color over it, so the lines stay sharp.
Recap each pen after use to keep the fine nibs from drying out.
All 13 pens are black. Plan on a separate set if you want colored lines.

Frequently asked questions about the XWT Fineliner Set (13 Pens)

Can I use watercolor over XWT fineliners?: Yes. Once dry, the pigment ink is waterproof and the listing says it does not smear under watercolor, markers or acrylics.
Which sizes are in the XWT fineliner set?: 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.55, 0.75, 1.0, 2.0 and 3.0 mm, plus a brush marker.
Are XWT fineliners waterproof?: Yes. XWT describes the black pigment ink as waterproof, sunproof and acid-free once it has dried.
What paper works with XWT fineliners?: The listing names watercolor paper, tracing paper, vellum and mixed media surfaces.
How do I make fineliner tips last?: The listing does not give care instructions. As general practice, use light pressure on the fine sizes and recap each pen after use so the tip does not dry out.