Is fineliners profitable to sell on Amazon United Kingdom?

The niche generates £259K/yr across 39 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -11.9%. Flapen's verdict: Worth a look (55/100).

How competitive is the fineliners niche?

25 brands and 130 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 67% of demand.

What do buyers complain about in fineliners?

Top complaints mined from reviews: Quality-Overall, Durability, Dry/Empty Ink. The return rate is 0.3%.

When does demand for fineliners peak?

Demand peaks in Jan–Dec; the busiest month runs 1.8× the quietest.

What does it cost to enter the fineliners niche?

Listings span £2.33–£27.65; the average listing price is £6.90 (sweet spot $15–$100). The average incumbent carries 3,604 reviews — the moat a new listing must climb.

fineliners

Worth a look

Shows low returns (0.3%), but soft demand (-11.9% this quarter) keeps it on the watch list.

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Great7.3%

search→purchase rate — share of searches ending in a sale

Competition

Good41%

top-5 click share — leaders hold, buyers still browse

Brand share

Good67%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good£2.33–£27.65

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Okay£259K

£259K/yr · 511K searches

Review moat

Okay3,603.92

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-11.9%

90-day search growth — must beat 0% to launch

Avg price

Bad£6.90

avg listing price — sweet spot $15–$100

According to Flapen's Amazon United Kingdom niche tracking, fineliners is a £259K/yr Amazon United Kingdom market (511K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Jan–Dec. Verdict: Worth a look — 55/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

fineliners market data

Units sold / yr: 40K–50K; avg 1,000–1,250/product
Revenue / yr: £276K–£345K; units × avg price
Conversion rate: 7.3%
Avg BSR: #50
Page quality: 0%
Prime: 100%
Sponsored: 85%
Out of stock: 4.2%
Avg brand age: 45 months
Avg seller age: 171 days

Competition & brand share

The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.

Brands

25 rising

Sellers

130

Top-5 brand share

67%

Top 20: 96%

Top-5 click share

41%

Top 20: 81%

Open market

27%

Liquidraw22%
STAEDTLER20%
KOUSICOO9%
STABILO8%
SKYGLORY8%
SAKURA6%

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — -11.9% search growth over the last 90 days.

Peak months: Jan, Dec · busiest ÷ quietest = 1.8×

Open Trend

Top fineliners search terms

fineliner pens159K/yr -4.3%5.8% conv.
staedtler fineliner pens45K/yr -13.8%4.5% conv.
fine liner pens black57K/yr -26.0%8.2% conv.
fineliners35K/yr -10.8%3.3% conv.
black fineliner pens30K/yr -4.5%9.5% conv.
fine tip pens28K/yr -17.5%3.4% conv.
fine liners24K/yr -3.8%6.0% conv.
fineliner17K/yr -13.0%3.8% conv.
fine liner pens19K/yr -22.1%5.2% conv.
fine liner13K/yr -3.7%4.8% conv.

All search terms

Top fineliners products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Liquidraw£3.894.5★992 rev

Muchcute Micro Fineliner Art Drawing Pens: 12 Black Artist Supplies Adults

KOUSICOO£6.424.5★1,076 rev

SAKURA Pigma Micron Fineliner Pens Set of 6 Waterproof Permanent Black Ink Assorted Sizes | Pens for Writing Drawing & Journaling

SAKURA£9.014.7★8,056 rev

STAEDTLER Fineliner Pens - triplus - for Adult Colouring - 20 Assorted Colours - Pack of 20 - 334 SB20

STAEDTLER£9.624.7★9,654 rev

STAEDTLER 308 SB6P Pigment Liner Fineliner Pens with Assorted Line Width - Black (Set of 4 + 2 Free)

STAEDTLER£8.244.7★15,487 rev

Newest

by launch date

Fineliner Pens 12 Pack Black Technical Drawing Pens Fine Line Markers

kander£7.4327 rev

3mo ago

SKYGLORY 18 Pack Fineliner Pen Set for Beginners 8 Black (0.05-0.8mm)+10 Assorted Colours (0.5mm) Archival Ink for Sketching Bullet Journal & Multi-Colour Art Projects Supplies

SKYGLORY£6.0321 rev

6mo ago

SKYGLORY 8 Pack Fineliner Pens for Beginner Artists 0.05-0.8mm Black Technical Drawing Pens with Archival Acid-Free Ink for Comic Inking Sketching & Bullet Journal Art Supplies

SKYGLORY£3.6121 rev

6mo ago

SUIN Fine Tip Drawing Pens Professional Micro-Line Art Pens for Illustration and Sketching Waterproof Black Ink Fineliner Pens for Bullet Journaling Anime & Technical Drawing (8 Pack)

SUIN£6.3267 rev

8mo ago

SKYGLORY 48 Colours Fineliner Pens Set-0.4mm Fine Tip with Free Colouring Card & Drawing Pad Colour-Matched Caps for DIY Craft & Adult Colouring with Metal Case (48)

SKYGLORY£7.39132 rev

1y ago

What buyers say about fineliners

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall16%

“Amazing quality”

Writing Experience11%

“Smooth writing”

Value For Money10%

“Excellent Value”

Pen/Pencil Quality9%

“Beautiful pens”

Drawing Experience8%

“Great drawing pens”

Advertised Vs Actual Product6%

“As described”

Nib/Tip Quality5%

“good nibs”

Color4%

“bright colours”

Smudge Resistance2%

“does not smudge”

Ink Refill2%

“Very nice flow of ink”

What buyers complain about

Quality-Overall8%

“Good quality pens let down by poor quality control”

Durability7%

“Run out quickly”

Dry/Empty Ink7%

“Pens dry”

Functionality-Overall7%

“Dont work”

Nib/Tip Quality5%

“the tip falls off them”

Color5%

“some colours run out within a day”

Moist/Dry5%

“it was soaking wet”

Ink Leakage5%

“Ink runs out very quickly”

Water Resistance4%

“No water proof”

Advertised Vs Actual Product3%

“which was not evident from looking at the photo”

Top return reasons

Functionality-Overall15%

Dry/Empty Ink10%

Quality-Overall9%

Color9%

Nib/Tip Quality7%

Ink Refill6%

Writing Experience3%