Is card grading kit profitable to sell on Amazon United States?

The niche generates $371K/yr across 11 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -16.3%. Flapen's verdict: Worth a look (50/100).

How competitive is the card grading kit niche?

10 brands and 20 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in card grading kit?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Ease Of Use. The return rate is 1.6%.

When does demand for card grading kit peak?

Demand peaks in Jan; the busiest month runs 1.8× the quietest.

What does it cost to enter the card grading kit niche?

Listings span $6.54–$32.87; the average listing price is $18.85 (sweet spot $15–$100). The average incumbent carries 183 reviews — the moat a new listing must climb.

card grading kit

Worth a look

Shows a thin review moat (183 avg reviews), but soft demand (-16.3% this quarter) keeps it on the watch list.

Review moat

Great182.64

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$18.85

avg listing price — sweet spot $15–$100

Returns

Great1.6%

return rate — above 5% kills the launch gate

Price range

Good$6.54–$32.87

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

Conversion

Good5.9%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good$371K

$371K/yr · 334K searches

Brand share

Okay82%

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

Growth

Bad-16.3%

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

Competition

Bad80%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, card grading kit is a $371K/yr Amazon United States market (334K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan. Verdict: Worth a look — 50/100.

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

card grading kit market data

Units sold / yr: 15K–20K; avg 1,250–1,500/product
Revenue / yr: $283K–$377K; units × avg price
Conversion rate: 5.9%
Avg BSR: #358
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 0.0%
Avg brand age: 32 months
Avg seller age: 164 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

12%

Envy Born Games40%
Generic20%
Brigruk8%
DEDC8%
UltraPro7%
Flinduy6%
Open — no brand owns it (4 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.3% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.8×

Open Trend

Top card grading kit search terms

card grading kit64K/yr -10.6%3.0% conv.
card centering grading tool51K/yr -20.4%6.9% conv.
psa grading kit34K/yr +6.7%3.6% conv.
card grading tool30K/yr -27.9%5.1% conv.
card centering tool21K/yr -17.0%6.4% conv.
centering tool17K/yr -10.3%3.3% conv.
pokemon card centering grading tool11K/yr -10.0%5.3% conv.
pokemon centering tool14K/yr -11.5%5.3% conv.
card grading9K/yr -2.7%2.6% conv.
pokemon grading tool10K/yr -25.7%4.6% conv.

All search terms

Top card grading kit 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Legends Card Grading Centering Tool by Envy Born Games | Cleaning Cloth Kit Material for PSA - BGS

Envy Born Games$11.874.4★855 rev

Card Grading Centering Tool Kit for Pokemon

Generic$12.004.2★181 rev

Sports Card Grading Kit Centering Tool LED Magnifying Table Lamp for Handsfree High Intensity Magnifying Loupe Microfiber Cloth

Brigruk$32.874.6★162 rev

PSA Card Grading Submission Kit by Ultra PRO

UltraPro$27.465.0★1 rev

Flinduy Sports Cards Grading Kit Card Centering Grading Tool Sports Trading Cards Measuring Tools

Flinduy$12.454.5★161 rev

Newest

by launch date

PSA Card Grading Submission Kit by Ultra PRO

UltraPro$27.461 rev

4mo ago

DEDC Card Grading Submission Kit Card Grading Kit Shipping Mailing Kit Box for PSA CGC SGC Trading Card- 25 Semi Rigid Card Holders 50 Card Sleeves 1 Shipping Label + 1 Wiping Cloth (1-Set- PSA)

DEDC$26.6352 rev

10mo ago

DEDC Card Grading Submission Kit Card Grading Shipping Mailing Box for PSA CGC SGC Trading Card 25 Semi Rigid Card Holders 50 Card Sleeves 1 Shipping Label + 1 Wiping Cloth (1-Set- Universal)

DEDC$22.7152 rev

1y ago

Card Centering Grading Tool for PSA Graded Card Submissions Card Center Tool Kit with Trading Cards Measuring Tools Thickness Measuring and Cleaning Cloth

BBRGIRL$6.5435 rev

1y ago

Card Grading Centering Tool Kit for Pokemon

Generic$12.00181 rev

1y ago

What buyers say about card grading kit

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

What buyers love

Quality-Overall30%

“The build quality is excellent”

Value For Money20%

“Value for Money”

Ease Of Use13%

“easy to use”

Advertised Vs Actual Product10%

“The item was just as advertised”

Strength8%

“Solid Set”

Size-Overall4%

“Fits perfectly”

Durability3%

“Durable,”

Correct Contents3%

“Complete kit came with everything it was supposed to and met standards”

Fun/Entertainment Experience3%

“Cool product for the hobby”

Collectibles3%

“Great purchase for the beginner pokemon collector”

What buyers complain about

Size-Overall29%

“Very small”

Quality-Overall19%

“Cheap junk, no value at all”

Ease Of Use13%

“not the easiest to use”

Instructions/User Manual/Troubleshooting7%

“Needs more instructions”

Advertised Vs Actual Product3%

“Either that or it is out of specs”

Functionality-Overall3%

“Doesn't work”

Thickness3%

“Outer box seems a bit thin”

Accuracy-Overall3%

“Not accurate”

Product Condition3%

“Not new”

Compatibility-Overall3%

“This item does not work for Pokemon cards”

Top return reasons

Size-Overall18%

Functionality-Overall18%

Ease Of Use11%

Advertised Vs Actual Product9%

Instructions/User Manual/Troubleshooting6%

Quality-Overall5%

Material Quality5%

Value For Money5%

Defective Material/Parts4%

Measurement/Reading Accuracy3%

Common questions

Is card grading kit profitable to sell on Amazon United States?: The niche generates $371K/yr across 11 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -16.3%. Flapen's verdict: Worth a look (50/100).
How competitive is the card grading kit niche?: 10 brands and 20 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in card grading kit?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Ease Of Use. The return rate is 1.6%.
When does demand for card grading kit peak?: Demand peaks in Jan; the busiest month runs 1.8× the quietest.
What does it cost to enter the card grading kit niche?: Listings span $6.54–$32.87; the average listing price is $18.85 (sweet spot $15–$100). The average incumbent carries 183 reviews — the moat a new listing must climb.

card grading kit

card grading kit market data

Competition & brand share

Demand & seasonality

Top card grading kit search terms

Top card grading kit products on Amazon

Top sellers

Newest

Trending

What buyers say about card grading kit

What buyers love

What buyers complain about

Top return reasons

Common questions

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