Skip to content
51

deep hole marker

Worth a look

Shows low returns (0.3%), but a small market ($57K/yr) keeps it on the watch list.

Market size 14Growth 15Conversion 86Competition 77Returns 99Price range 37Avg price 19Brand share 62Review moat 74Quality gap 43

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Great9.7%

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

Competition

Great38%

top-5 click share — an open shelf

Review moat

Good559.14

avg incumbent reviews — the moat a new listing must climb

Brand share

Good68%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay£1.59–£22.84

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

Avg price

Bad£6.91

avg listing price — sweet spot $15–$100

Growth

Bad-20.1%

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

Market size

Bad£57K

£57K/yr · 86K searches

According to Flapen's Amazon United Kingdom niche tracking, deep hole marker is a £57K/yr Amazon United Kingdom market (86K searches/yr). The top 5 brands hold 68% of demand. Verdict: Worth a look — 51/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

deep hole marker market data

Units sold / yr
6K–8K
avg 100–250/product
Revenue / yr
£41K–£55K
units × avg price
Conversion rate
9.7%
Avg BSR
#133
Page quality
0%
Prime
100%
Sponsored
88%
Out of stock
3.5%
Avg brand age
35 months
Avg seller age
170 days

Competition & brand share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

24 rising

Sellers

93

Top-5 brand share

68%

Top 20: 97%

Top-5 click share

38%

Top 20: 82%

Open market

29%

  • Tracer34%
  • YLYDMY18%
  • CHARLES BENTLEY6%
  • Jeeshvan5%
  • nuneoeuo4%
  • Marxman4%

Demand

Weekly Amazon search volume, last 38 weeks — -20.1% search growth over the last 90 days.
2K2KNov '25Dec '25Jan '26Mar '26Apr '26May '26

Top deep hole marker search terms

  • long nib marker pen16K/yr
  • tracer marker pen16K/yr
  • deep hole marker16K/yr
  • tracer pen12K/yr
  • marking pen6K/yr
  • long nib marker6K/yr
  • tracer marker6K/yr
  • deep hole marker pen4K/yr
  • builders marker pens4K/yr
All search terms

Top deep hole marker 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.

0%3%£2K6%£3K9%£5K12%£7K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

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

What buyers say about deep hole marker

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

What buyers love

Quality-Overall18%

“Excellent product”

Ease Of Use18%

“Easy to use”

Value For Money12%

“worth the money”

Pen/Pencil Quality6%

“Decent Markers”

Advertised Vs Actual Product5%

“it performs exactly as it should”

Drawing Experience4%

“Great Marker”

Efficiency4%

“work well on paving”

Durability3%

“Easy to use and durable”

Strength3%

“Sturdy”

Writing Experience3%

“Write well”

What buyers complain about

Durability22%

“Broke easily”

Quality-Overall13%

“This pencil is very poor quality”

Value For Money8%

“Extortionate price for poor performance”

Functionality-Overall5%

“Doesn't work”

Leak-Proof4%

“just very leaky”

Moist/Dry4%

“Do not get it wet or damp won't work”

Thickness4%

“thin line”

Dry/Empty Ink3%

“Most of them are dry and don't work”

Sliding/Retract Mechanism2%

“Paid a premium to get something good retracts when trying to use is useless have to mess with the button pulling it back just enough so it actually dispenses lead pathetic”

Unsustainable Design2%

“Obviously its not fit for purpose in construction”

Top return reasons

Functionality-Overall30%
Defective Material/Parts12%
Mechanism Issues6%
Touch/Button Controls5%
Durability4%
Value For Money4%
Grip3%
Advertised Vs Actual Product3%
Leak-Proof3%
Size-Overall3%

Common questions

Is deep hole marker profitable to sell on Amazon United Kingdom?
The niche generates £57K/yr across 42 tracked products. 1 of 20 products launched in the last 360 days are still selling. 90-day search growth is -20.1%. Flapen's verdict: Worth a look (51/100).
How competitive is the deep hole marker niche?
24 brands and 93 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in deep hole marker?
Top complaints mined from reviews: Durability, Quality-Overall, Value For Money. The return rate is 0.3%.
What does it cost to enter the deep hole marker niche?
Listings span £1.59–£22.84; the average listing price is £6.91 (sweet spot $15–$100). The average incumbent carries 559 reviews — the moat a new listing must climb.