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37

index cards 6x4 ruled

Skip it

Prices mostly outside the sweet spot ($1.54–$12.71) — this niche doesn't clear our bar today.

Market size 5Growth 1Conversion 87Competition 59Returns 98Price range 0Avg price 16Brand share 24Review moat 35Quality gap 35

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great10.1%

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

Competition

Good50%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,961.64

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad90%

top-5 brand share — brand-locked demand

Avg price

Bad£5.62

avg listing price — sweet spot $15–$100

Market size

Bad£20K

£20K/yr · 35K searches

Growth

Bad-48.4%

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

Price range

Bad£1.54–£12.71

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

According to Flapen's Amazon United Kingdom niche tracking, index cards 6x4 ruled is a £20K/yr Amazon United Kingdom market (35K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Feb–Mar–Apr. Verdict: Skip it — 37/100.

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

index cards 6x4 ruled market data

Units sold / yr
5K–6K
avg 100–250/product
Revenue / yr
£28K–£34K
units × avg price
Conversion rate
10.1%
Avg BSR
#61
Page quality
0%
Prime
100%
Sponsored
48%
Out of stock
2.0%
Avg brand age
33 months
Avg seller age
196 days

Competition & brand share

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

82

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

50%

Top 20: 96%

Open market

7%

  • Silvine40%
  • Roneky18%
  • Hawksbill15%
  • Essential Arts11%
  • SUMMIT6%
  • 1ABOVE3%
  • Open — no brand owns it (6 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -48.4% search growth over the last 90 days.
1K800Spike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Feb, Mar, Apr · busiest ÷ quietest = 4.6×

Top index cards 6x4 ruled search terms

  • flash cards white8K/yr
  • white flash cards9K/yr
  • silvine revision cards3K/yr
  • flashcards white8K/yr
  • silvine record cards4K/yr
  • white revision cards3K/yr
All search terms

Top index cards 6x4 ruled 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%4%£7858%£2K12%£2K16%£3K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about index cards 6x4 ruled

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

What buyers love

Quality-Overall21%

“Good quality”

Advertised Vs Actual Product21%

“As advertised”

Size-Overall16%

“the perfect size”

Value For Money12%

“Although good value for the amount”

Ease Of Use6%

“easy to use”

Color4%

“Great size and colours”

Document Organizing/Classification4%

“more than enough for organising notes across multiple subjects or topics”

Paper Quality4%

“Good quality paper”

Thickness2%

“They are thick enough without being bulky”

Strength1%

“They are sturdy”

What buyers complain about

Thickness28%

“Thinner than I expected”

Paper Quality10%

“They are bits of cardboard - not a lot to really say”

Quality-Overall10%

“This time the card quality has declined with ruled lines faded and patchy”

Size-Overall9%

“Larger than I meant to get -”

Value For Money6%

“the new pricing feels excessive”

Strength3%

“Quite thin”

Writing Experience3%

“the lines are so faint when youre writing notes its hard to stay on the lines”

Top return reasons

Size-Overall90%
Thin3%
Advertised Vs Actual Product2%
Color1%
Paper Quality1%
Value For Money1%
Quality-Overall1%
Water Resistance1%
Strength0%
Functionality-Overall0%

Common questions

Is index cards 6x4 ruled profitable to sell on Amazon United Kingdom?
The niche generates £20K/yr across 25 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -48.4%. Flapen's verdict: Skip it (37/100).
How competitive is the index cards 6x4 ruled niche?
12 brands and 82 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in index cards 6x4 ruled?
Top complaints mined from reviews: Thickness, Paper Quality, Quality-Overall. The return rate is 0.4%.
When does demand for index cards 6x4 ruled peak?
Demand peaks in Feb–Mar–Apr; the busiest month runs 4.6× the quietest.
What does it cost to enter the index cards 6x4 ruled niche?
Listings span £1.54–£12.71; the average listing price is £5.62 (sweet spot $15–$100). The average incumbent carries 2,962 reviews — the moat a new listing must climb.