Is semi rigid card holders profitable to sell on Amazon United Kingdom?

The niche generates £140K/yr across 7 tracked products. 90-day search growth is -20.7%. Flapen's verdict: Skip it (36/100).

How competitive is the semi rigid card holders niche?

4 brands and 6 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in semi rigid card holders?

Top complaints mined from reviews: Strength, Quality-Overall, Advertised Vs Actual Product. The return rate is 0.3%.

When does demand for semi rigid card holders peak?

Demand peaks in Sep–Oct; the busiest month runs 1.6× the quietest.

What does it cost to enter the semi rigid card holders niche?

Listings span £4.09–£16.91; the average listing price is £10.35 (sweet spot $15–$100). The average incumbent carries 765 reviews — the moat a new listing must climb.

semi rigid card holders

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Incredible16.0%

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

Review moat

Good765.14

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay£10.35

avg listing price — sweet spot $15–$100

Market size

Okay£140K

£140K/yr · 84K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-20.7%

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

Price range

Bad£4.09–£16.91

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

Competition

Bad89%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, semi rigid card holders is a £140K/yr Amazon United Kingdom market (84K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 36/100.

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

semi rigid card holders market data

Units sold / yr: 10K–13K; avg 750–1,000/product
Revenue / yr: £104K–£129K; units × avg price
Conversion rate: 16.0%
Avg BSR: #45
Page quality: 0%
Prime: 100%
Sponsored: 57%
Out of stock: 13.6%
Avg brand age: 30 months
Avg seller age: 181 days

Competition & brand share

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

MintKeeper62%
GO DELIGHT18%
Sentinel12%
Protectodon8%

Demand & seasonality

Weekly Amazon search volume, last 79 weeks — -20.7% search growth over the last 90 days.

Peak months: Sep, Oct · busiest ÷ quietest = 1.6×

Open Trend

Top semi rigid card holders search terms

semi rigid card holders51K/yr -20.6%14.0% conv.
semi rigid7K/yr -19.3%10.6% conv.
semi rigid card sleeves7K/yr -16.1%8.6% conv.
card saver5K/yr -20.0%5.6% conv.
card saver 13K/yr -12.0%7.8% conv.
semi ridged card holders3K/yr -19.4%13.7% conv.
semi rigid card holder3K/yr -25.5%7.8% conv.
vault x semi rigid2K/yr -27.0%4.4% conv.
card savers2K/yr -44.1%10.3% conv.

All search terms

Top semi rigid card holders 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 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MintKeeper - Semi Rigid Card Holder - Recommended Size for PSA BGS SGC Grading (25 Pack)

MintKeeper£4.094.7★231 rev

Semi Rigid Card Holders & Sleeves for PSA Trading Card Grading Submission

GO DELIGHT£13.104.6★2,310 rev

MintKeeper - Semi Rigid Card Holder - Recommended Size for PSA BGS SGC Grading (50 Pack)

MintKeeper£6.804.7★231 rev

Sentinel Semi Rigid Card Holders (100 Pack) - Premium Card Sleeves for Trading and Collectible Card Games - Card Savers Ideal for Grading Submissions (PSA BGS CGC)

Sentinel£14.964.5★110 rev

Protectodon Semi-Rigid Card Holders - Pack of 50 Protectors - Suitable for Sports Cards Trading Cards Grading Submissions (50 Pack)

Protectodon£7.564.6★54 rev

Newest

by launch date

Sentinel Semi Rigid Card Holders (50 Pack) - Premium Card Sleeves for Trading and Collectible Card Games - Card Savers Ideal for Grading Submissions (PSA BGS CGC)

Sentinel£9.05110 rev

2y ago

Protectodon Semi-Rigid Card Holders - Pack of 50 Protectors - Suitable for Sports Cards Trading Cards Grading Submissions (50 Pack)

Protectodon£7.5654 rev

2y ago

Sentinel Semi Rigid Card Holders (100 Pack) - Premium Card Sleeves for Trading and Collectible Card Games - Card Savers Ideal for Grading Submissions (PSA BGS CGC)

Sentinel£14.96110 rev

3y ago

Semi Rigid Card Holders & Sleeves for PSA Trading Card Grading Submission

GO DELIGHT£16.912,310 rev

4y ago

MintKeeper - Semi Rigid Card Holder - Recommended Size for PSA BGS SGC Grading (25 Pack)

MintKeeper£4.09231 rev

5y ago

What buyers say about semi rigid card holders

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

What buyers love

Quality-Overall34%

“great build quality”

Advertised Vs Actual Product13%

“Perfect, as advertised”

Strength11%

“Strength”

Value For Money9%

“the rarity of the cards that should really go in these they are a great value for money”

Size-Overall9%

“Good size”

Ease Of Use6%

“Quick and easy”

Thickness4%

“Good, wasnt expecting to be thin”

Drop/Impact Protection2%

“easy protecting the card on its way”

Durability2%

“the durability is amazing not noticed them damaging the cards”

Efficiency2%

“Work fine”

What buyers complain about

Strength35%

“Also very flimsy wouldnt be good for transporting”

Quality-Overall35%

“Poor quality”

Advertised Vs Actual Product10%

“Avoid, not as described”

Value For Money10%

“found it really expensive for what it is”

Size-Overall10%

“they are also rather big”

Top return reasons

Size-Overall63%

Strength11%

Flexibility7%

Quality-Overall5%

Advertised Vs Actual Product5%