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63.5 X 88mm Card Sleeves

brand-locked demand (top 5 brands take 100% of clicks) — 63.5 X 88mm Card Sleeves doesn't clear our bar today.

Flapen Score

40
Skip it

Ranks 2,172 of 3,143 Toys & Games niches · −6 vs the category median of 46

Market size 15Growth 21Conversion 96Competition 24Returns 95Price range 66Avg price 56Brand share 0Review moat 54Quality gap 30
This niche Category average · 3,143 niches

Is 63.5 X 88mm Card Sleeves profitable on Amazon?

According to Flapen's Amazon United States niche tracking, 63.5 X 88mm Card Sleeves is a $61K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 40/100.

63.5 X 88mm Card Sleeves: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -8.1% over the last 90 days and 13.1% of searches end in a purchase.

$61K

revenue / yr

Units sold / yr6K
Search volume / yr-8.1%37K
Conversion rate13.1%
Avg price$12.70

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers5 · 9
Top-5 product click share71%
Open market0%
Avg brand age59 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.

0/100

page quality · 18 products

Sponsored placement94%
New entrants (1y)0· 0 succeeded
Avg rating4.6★
Avg reviews1,320

Top 63.5 X 88mm Card Sleeves products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

$0$6K$12K$18K$25K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

9

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

0%

  • Sleeve Kings56%
  • Mayday Games40%
  • Coolrunner1%
  • Mlikero1%
  • IARJI1%

63.5 X 88mm Card Sleeves demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume37KCVR13.1%Products18Brands5Top 5 Brands100%OOS Rate0.0%Rating4.6★Reviews1,320Avg BSR#322
1K750Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Dec · busiest ÷ quietest = 2.2×

Top 63.5 X 88mm Card Sleeves search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • sleeve kings12K/yr
  • mayday card sleeves8K/yr
  • 63x88 card sleeves4K/yr
  • 63.5 x 88mm card sleeves5K/yr
  • mayday sleeves2K/yr
  • sleeve kings 63.5x882K/yr
  • sleeve kings card sleeves3K/yr

What reviews say buyers love and hate about 63.5 X 88mm Card Sleeves

What buyers mention most, as a share of all reviews.

What buyers love

88% of reviews
Size-Overall32%

snug enough

Value For Money15%

Good deal

Quality-Overall11%

Quality sleeves, good price

Advertised Vs Actual Product10%

As advertised

Drop/Impact Protection7%

The sleeves do provide good protection

What buyers complain about

84% of reviews
Size-Overall45%

To small

Thickness10%

They're also definitely a little bit thicker than regular sleeves

Ease Of Use6%

its incredible hard to insert

Wrinkles5%

It does wrinkle easy so theres no saving it if it gets squashed/damaged

Grip4%

I don't like that they are slippery

63.5 X 88mm Card Sleeves return rate & reasons

Why buyers send it back, as a share of all return requests.

0.9%

Return rate

69%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
60%
2Thin
6%
3Value For Money
6%
4Quality-Overall
6%
5Advertised Vs Actual Product
5%

Common 63.5 X 88mm Card Sleeves questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores 63.5 X 88mm Card Sleeves 40/100 on Amazon United States — Skip it. The niche generates $61K/yr across 18 tracked products. Search demand moved -8.1% over the last 90 days.
Search demand for 63.5 X 88mm Card Sleeves on Amazon United States peaks in Jan–Dec, where the busiest month runs 2.2× the quietest.