---
title: "Clam Shells — $177K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/clam-shells"
last_updated: "2026-08-10T04:03:33.169Z"
locale: en
meta:
description: "Niche score 68/100 · $177K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Aug 2026."
"og:description": "Niche score 68/100 · $177K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Aug 2026."
"og:title": "Clam Shells — $177K/yr Amazon US Niche (2026) - Flapen"
---
# **clam shells**
**Worth a look**
Shows demand growing +92.3% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 36Growth 88Conversion 60Competition 81Returns 59Price range 63Avg price 86Brand share 87Review moat 80Quality gap 48
**Growth**
**Great****+92.3%**
90-day search growth — must beat 0% to launch
**Brand share**
**Great****48%**
top-5 brand share — no brand owns this niche
**Avg price**
**Great****$19.25**
avg listing price — sweet spot $15–$100
**Competition**
**Great****34%**
top-5 click share — an open shelf
**Review moat**
**Great****396.61**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$7.81–$143.36**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.6%**
return rate — above 5% kills the launch gate
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$177K**
$177K/yr · 176K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, clam shells is a $177K/yr Amazon United States market (176K searches/yr). The top 5 brands hold 48% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 68/100.
Data updated Aug 3, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **clam shells market data**
- **Units sold / yr**
- **8K–10K**
- avg 100–250/product
- **Revenue / yr**
- **$154K–$193K**
- units × avg price
- **Conversion rate**
- **5.2%**
- **Avg BSR**
- **#452**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **96%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.
**Brands**
**34 **▲rising
**Sellers**
**41**
**Top-5 brand share**
**48%**
Top 20: 89%
**Top-5 click share**
**34%**
Top 20: 74%
**Open market**
**47%**
- SEAJIAYI15% - ReePlan11% - WeDoSoy10% - Mkobon6% - LAMIVORA6% - PEPPERLONELY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +92.3% search growth over the last 90 days.
6K4KHoliday '24Spike '25Prime Day '25Holiday '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/clam-shells/trend)
## **Top clam shells search terms**
- **clam shells**40K/yr+71.4%2.1% conv. - **clam shells for crafts**31K/yr+94.8%3.6% conv. - **shells for decoupage**18K/yr+177.8%5.4% conv. - **large shells for crafts**14K/yr+107.6%5.2% conv. - **large seashells for crafts**11K/yr+188.2%4.8% conv. - **clam shell**15K/yr+31.1%1.0% conv. - **large clam shells**9K/yr+112.9%2.1% conv. - **large scallop shells**9K/yr+86.8%6.5% conv. - **large clam shells for crafts**6K/yr+185.9%2.6% conv. - **large scallop shells for crafts**6K/yr+113.0%7.5% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/clam-shells/search-terms)
## **Top clam shells 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%3%$5K6%$11K9%$16K12%$21K101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**SEAJIAYI 10 PCS Large Scallop Shells 4-5 inch Natural White Scallop Shells from Sea Beach for DIY Craft Decor**SEAJIAYI**$14.23**4.4★1,616 rev](https://www.amazon.com/dp/B0BDRXPJVG) [2**10PCS Large Natural Scallop Shells 4-5 Large Shell for Crafts DIY Painting Baking and Beach Wedding Decorations - Large White Seashells Bulk for Ocean Themed Parties and Home Decor**WeDoSoy**$14.73**4.7★336 rev](https://www.amazon.com/dp/B0C9PZSTQN) [3**20PCS Natural Scallop Shells for Crafts 4-5 in White Sea Shells DIY Decor**ReePlan**$18.45**4.6★142 rev](https://www.amazon.com/dp/B0FHJ3R6SW) [4**SEAJIAYI 30 PCS Scallop Shells 2-3 Inch Natural White Sea Shells from Sea Beach for DIY Craft Home Dcor(6-8 cm)**SEAJIAYI**$11.54**4.4★1,616 rev](https://www.amazon.com/dp/B08CBQRQR6) [5**10PCS Natural Scallop Shells for Crafts 4-5 in White Sea Shells DIY Decor**ReePlan**$10.75**4.6★142 rev](https://www.amazon.com/dp/B0G4QSF8KV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**LAMIVORA 20Pcs 4-5 Inch Large Scallop Shells for Crafts**LAMIVORA**$18.95**43 rev4mo ago](https://www.amazon.com/dp/B0GT19NN77) [**LAMIVORA 30Pcs 4-5 Inch Concave Large Oyster Shells for Crafts**LAMIVORA**$26.49**64 rev4mo ago](https://www.amazon.com/dp/B0GSZS64PD) [**DOODLEBEAN 4-5 30 PCS Large Scallop Shells for Crafts Natural Sea Shells for DIY Crafting White Seashells Bulk for Decorating Painting Ocean Themed Party Supplies & Home Shell Decor**DOODLEBEAN**$21.36**42 rev6mo ago](https://www.amazon.com/dp/B0G6L2VT8B) [**Denking Large Scallop Shells 20 PCS 3.5-4 Inch**denking**$21.23**64 rev7mo ago](https://www.amazon.com/dp/B0G933LFCL) [**10PCS Natural Scallop Shells for Crafts 4-5 in White Sea Shells DIY Decor**ReePlan**$10.75**142 rev8mo ago](https://www.amazon.com/dp/B0G4QSF8KV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**LAMIVORA 30Pcs 4-5 Inch Concave Large Oyster Shells for Crafts**LAMIVORA**$26.49**4.0★**▲ 142%**](https://www.amazon.com/dp/B0GSZS64PD) [**LAMIVORA 20Pcs 4-5 Inch Large Scallop Shells for Crafts**LAMIVORA**$18.95**4.7★**▲ 141%**](https://www.amazon.com/dp/B0GT19NN77) [**DOODLEBEAN 4-5 30 PCS Large Scallop Shells for Crafts Natural Sea Shells for DIY Crafting White Seashells Bulk for Decorating Painting Ocean Themed Party Supplies & Home Shell Decor**DOODLEBEAN**$21.36**4.5★**▲ 98%**](https://www.amazon.com/dp/B0G6L2VT8B) [**10PCS Natural Scallop Shells for Crafts 4-5 in White Sea Shells DIY Decor**ReePlan**$10.75**4.6★**▲ 69%**](https://www.amazon.com/dp/B0G4QSF8KV) [**Denking Large Scallop Shells 20 PCS 3.5-4 Inch**denking**$21.23**4.5★**▲ 58%**](https://www.amazon.com/dp/B0G933LFCL)
**~~View all trending →~~**
## **What buyers say about clam shells**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**22%
*“Perfect Size Containers”*
**Quality-Overall**18%
*“The quality makes them very versatile”*
**Value For Money**10%
*“Good for the price”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Color**5%
*“the color is pretty”*
**Ease Of Cleaning**5%
*“They are clean and flawless”*
**Design-Overall**4%
*“have added a touch of elegance to my home decor”*
**Durability**4%
*“Durable & sturdy”*
**Strength**3%
*“not flimsy”*
**Ease Of Use**3%
*“These containers are very handy”*
### **What buyers complain about **
**Size-Overall**25%
*“Very small”*
**Quality-Overall**9%
*“Poor quality control”*
**Smell**7%
*“had a fishy smell”*
**Strength**6%
*“Not sturdy”*
**Thickness**6%
*“The material is not as thick as I thought it would be”*
**Value For Money**6%
*“It wasn't cheap to buy”*
**Advertised Vs Actual Product**5%
*“False advertising”*
**Paint Quality**3%
*“Awful for Painting Projects”*
**Ease Of Cleaning**2%
*“You feel like youre covered in bacteria while you clean them”*
**Shape/Style**2%
*“Were not all perfectly shaped”*
### **Top return reasons **
**Size-Overall**62%
**Defective Material/Parts**7%
**Advertised Vs Actual Product**6%
**Value For Money**5%
**Thin**3%
**Quality-Overall**3%
**Smell**3%
**Color**2%
**Functionality-Overall**2%
**Strength**2%
## **Common questions**
- **Is clam shells profitable to sell on Amazon United States?**
- The niche generates $177K/yr across 51 tracked products. 11 of 16 products launched in the last 360 days are still selling. 90-day search growth is +92.3%. Flapen's verdict: Worth a look (68/100).
- **How competitive is the clam shells niche?**
- 34 brands and 41 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 48% of demand.
- **What do buyers complain about in clam shells?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Smell. The return rate is 2.6%.
- **When does demand for clam shells peak?**
- Demand peaks in Jun–Jul; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the clam shells niche?**
- Listings span $7.81–$143.36; the average listing price is $19.25 (sweet spot $15–$100). The average incumbent carries 397 reviews — the moat a new listing must climb.
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