Is letter stamps profitable to sell on Amazon United States?

The niche generates $286K/yr across 35 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -16.5%. Flapen's verdict: Worth a look (54/100).

How competitive is the letter stamps niche?

31 brands and 62 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 55% of demand.

What do buyers complain about in letter stamps?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Print Quality. The return rate is 1.0%.

When does demand for letter stamps peak?

Demand peaks in Jan–Nov–Dec; the busiest month runs 1.7× the quietest.

What does it cost to enter the letter stamps niche?

Listings span $5.43–$27.17; the average listing price is $13.04 (sweet spot $15–$100). The average incumbent carries 3,341 reviews — the moat a new listing must climb.

letter stamps

Worth a look

Shows low returns (1.0%), but soft demand (-16.5% this quarter) keeps it on the watch list.

Returns

Great1.0%

return rate — above 5% kills the launch gate

Brand share

Great55%

top-5 brand share — no brand owns this niche

Avg price

Good$13.04

avg listing price — sweet spot $15–$100

Competition

Good50%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good$5.43–$27.17

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

Market size

Good$286K

$286K/yr · 551K searches

Conversion

Okay4.0%

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

Review moat

Okay3,340.97

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-16.5%

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

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, letter stamps is a $286K/yr Amazon United States market (551K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Worth a look — 54/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

letter stamps market data

Units sold / yr: 20K–25K; avg 250–500/product
Revenue / yr: $261K–$326K; units × avg price
Conversion rate: 4.0%
Avg BSR: #132
Page quality: 0%
Prime: 97%
Sponsored: 89%
Out of stock: 1.8%
Avg brand age: 45 months
Avg seller age: 169 days

Competition & brand share

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

Brands

31 falling

Sellers

Top-5 brand share

55%

Top 20: 89%

Top-5 click share

50%

Top 20: 85%

Open market

42%

krastmon16%
Opvixi13%
OJYUDD12%
Melissa & Doug8%
Wiratca7%
YIKANGHENG3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.5% search growth over the last 90 days.

Peak months: Jan, Nov, Dec · busiest ÷ quietest = 1.7×

Open Trend

Top letter stamps search terms

letter stamps227K/yr -14.2%3.5% conv.
alphabet stamps138K/yr -21.0%2.7% conv.
letter stamp30K/yr -8.3%1.9% conv.
stamp letters19K/yr -9.7%3.9% conv.
letter stamps for scrapbooking17K/yr -15.9%3.7% conv.
alphabet stamp set15K/yr -25.5%2.8% conv.
small letter stamps13K/yr -27.4%5.3% conv.
large letter stamps9K/yr +7.6%1.1% conv.
alphabet stamp11K/yr -22.0%2.6% conv.
letter stamp set13K/yr -27.7%2.8% conv.

All search terms

Top letter stamps 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

36 Pcs Small Wooden Rubber Stamps Wooden Box Multipurpose Number Alphabet Letter Wood Rubber Stamp for Card Making DIY Craft Scrapbooking Supplie etc

krastmon$9.094.5★322 rev

Opvixi 42 Pcs Letter Stamps Rubber Stamps Alphabet Stamps Wooden Stamps Number Alphabet Letter Symbol Set for DIY Crafting Scrapbooking Supplies Card Making

Opvixi$8.634.5★166 rev

70Pcs Wooden Rubber Alphabet Letter Number Stamps Rectangular Capital & Lower Case DIY Craft Card Making Scrapbooking Supplies (Dark Wooden)

OJYUDD$11.194.3★888 rev

Letter Stamps 36 Pcs with Wooden Storage Box Premium Alphabet Stamps Set for Crafting Essential Rubber Letter Stamp Kit for Clay DIY Cards & Scrapbooking

Wiratca$9.454.7★40 rev

Melissa & Doug Wooden Alphabet Stamp Set - 56 Stamps with Lower-Case and Capital Letters Preschool Writing Toys ABC Stamps Kids Arts & Crafts Letter for Kids Ages 4+

Melissa & Doug$19.994.7★1,894 rev

Newest

by launch date

Etehup 42PCS Vintage Wooden Rubber Letter Stamps Set Alphabet & Number & Symbol Stamps with Storage Case for DIY Crafts Scrapbooking Card Making Art Projects and More

Etehup$7.5722 rev

2mo ago

Busy edition Alphabet Number Stamps for Kids Wooden Letter Stamps with Flashcard Math Learning Number Stampers Toddler Arts and Crafts Supplies Montessori Educational Toys for 3 4 5 Year Old

Busy edition$24.9034 rev

4mo ago

42 Pcs Letter Stamps Wooden Alphabet Rubber Stamps Set

KHASIM$7.0022 rev

5mo ago

Opvixi 42 Pcs Letter Stamps Rubber Stamps Alphabet Stamps Wooden Stamps Number Alphabet Letter Symbol Set for DIY Crafting Scrapbooking Supplies Card Making

Opvixi$8.63166 rev

11mo ago

Letter Stamps 36 Pcs with Wooden Storage Box Premium Alphabet Stamps Set for Crafting Essential Rubber Letter Stamp Kit for Clay DIY Cards & Scrapbooking

Wiratca$9.4540 rev

1y ago

What buyers say about letter stamps

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

What buyers love

Quality-Overall18%

“Nice quality and easy to use”

Advertised Vs Actual Product14%

“As advertised”

Print Quality11%

“Prints perfect”

Value For Money9%

“GOOD VALUE”

Ease Of Use9%

“easy to handle”

Size-Overall7%

“Good size”

Efficiency4%

“it worked perfectly”

Fun/Entertainment Experience2%

“fun for my toddler”

Functionality-Overall2%

“should work out just fine for my needs”

Design-Overall1%

“good design”

What buyers complain about

Size-Overall30%

“To Small”

Quality-Overall11%

“Very poor quality control”

Print Quality10%

“It is poorly printed”

Ease Of Use4%

“hard to handle”

Functionality-Overall3%

“Doesn't work efficiently :”

Value For Money3%

“A little steep price wise”

Durability2%

“Falls apart”

Advertised Vs Actual Product2%

“Deceiving”

Writing Experience1%

“The writing is a little too close together so when using it can bleed into each other”

Cartridge/Ink Quality1%

“except the ink was a little light”

Top return reasons

Size-Overall51%

Functionality-Overall10%

Advertised Vs Actual Product7%

Print Quality6%

Value For Money3%

Quality-Overall3%

Ease Of Use3%

Defective Material/Parts3%

Material Quality2%

Assembly/Installation1%

Common questions

Is letter stamps profitable to sell on Amazon United States?: The niche generates $286K/yr across 35 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -16.5%. Flapen's verdict: Worth a look (54/100).
How competitive is the letter stamps niche?: 31 brands and 62 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 55% of demand.
What do buyers complain about in letter stamps?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Print Quality. The return rate is 1.0%.
When does demand for letter stamps peak?: Demand peaks in Jan–Nov–Dec; the busiest month runs 1.7× the quietest.
What does it cost to enter the letter stamps niche?: Listings span $5.43–$27.17; the average listing price is $13.04 (sweet spot $15–$100). The average incumbent carries 3,341 reviews — the moat a new listing must climb.