Skip to content
48

castor cups

Skip it

Prices mostly outside the sweet spot ($3.58–$13.98) — this niche doesn't clear our bar today.

Market size 21Growth 20Conversion 66Competition 62Returns 79Price range 0Avg price 19Brand share 74Review moat 50Quality gap 76

Returns

Great1.8%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Brand share

Good61%

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

Conversion

Good5.9%

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

Competition

Good48%

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

Review moat

Good1,499

avg incumbent reviews — the moat a new listing must climb

Market size

Bad£84K

£84K/yr · 207K searches

Growth

Bad-9.9%

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

Avg price

Bad£6.84

avg listing price — sweet spot $15–$100

Price range

Bad£3.58–£13.98

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

According to Flapen's Amazon United Kingdom niche tracking, castor cups is a £84K/yr Amazon United Kingdom market (207K searches/yr). The top 5 brands hold 61% of demand. Verdict: Skip it — 48/100.

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

castor cups market data

Units sold / yr
13K–15K
avg 250–500/product
Revenue / yr
£86K–£103K
units × avg price
Conversion rate
5.9%
Avg BSR
#97
Page quality
0%
Prime
90%
Sponsored
66%
Out of stock
7.5%
Avg brand age
41 months
Avg seller age
196 days

Competition & brand share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

29 falling

Sellers

41

Top-5 brand share

61%

Top 20: 92%

Top-5 click share

48%

Top 20: 80%

Open market

35%

  • Just Pudding Basins18%
  • Medipaq15%
  • fiXte11%
  • Lookka11%
  • SOL6%
  • SUL4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.9% search growth over the last 90 days.
5K4KSpike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Top castor cups search terms

  • carpet protector cups25K/yr
  • castor cups22K/yr
  • furniture cups20K/yr
  • carpet protectors for furniture legs11K/yr
  • furniture castor cups14K/yr
  • furniture cups for carpet10K/yr
  • castor cups for furniture on carpet11K/yr
  • furniture feet cups10K/yr
  • caster cups12K/yr
  • furniture coasters11K/yr
All search terms

Top castor cups 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%£3K8%£7K12%£10K16%£13K1101001K10K 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 castor cups

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

What buyers love

Quality-Overall23%

“Decent quality”

Advertised Vs Actual Product21%

“does the job perfectly”

Size-Overall12%

“Brilliant fit”

Value For Money11%

“Good value for money”

Ease Of Use10%

“Ease of use”

Strength6%

“Solid item”

Grip2%

“Non slip and easy fit”

Floor Protection2%

“Floor protection”

Scratch Resistance1%

“stop the furniture leaving any marks”

Weight Heavy1%

“Makes heavy furniture movable”

What buyers complain about

Size-Overall19%

“Poor sizing”

Quality-Overall13%

“Shocking quality”

Adhesion/Stickiness11%

“Poor adhesion”

Durability8%

“Fall apart straight away”

Value For Money7%

“Not worth the money”

Strength5%

“Too flimsy”

Grip5%

“slip off easily”

Wood Quality4%

“They arent wood”

Material Quality3%

“Cheap and nasty plastic”

Color3%

“Actual color is more grey than brown”

Top return reasons

Size-Overall70%
Color5%
Material Quality4%
Functionality-Overall4%
Advertised Vs Actual Product3%
Grip2%
Compatibility-Overall2%
Quality-Overall2%
Defective Material/Parts1%
Adhesion/Stickiness1%

Common questions

Is castor cups profitable to sell on Amazon United Kingdom?
The niche generates £84K/yr across 41 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -9.9%. Flapen's verdict: Skip it (48/100).
How competitive is the castor cups niche?
29 brands and 41 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 61% of demand.
What do buyers complain about in castor cups?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Adhesion/Stickiness. The return rate is 1.8%.
When does demand for castor cups peak?
Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the castor cups niche?
Listings span £3.58–£13.98; the average listing price is £6.84 (sweet spot $15–$100). The average incumbent carries 1,499 reviews — the moat a new listing must climb.