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plastic jars with lids 4 oz

Skip it

A small market ($55K/yr) — this niche doesn't clear our bar today.

Market size 14Growth 20Conversion 57Competition 41Returns 63Price range 72Avg price 82Brand share 65Review moat 46Quality gap 23

Avg price

Great$17.65

avg listing price — sweet spot $15–$100

Price range

Good$7.13–$35.18

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

Brand share

Good66%

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

Returns

Good2.5%

return rate — above 5% kills the launch gate

Conversion

Good4.9%

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

Review moat

Okay1,857.48

avg incumbent reviews — the moat a new listing must climb

Competition

Okay60%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-9.3%

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

Market size

Bad$55K

$55K/yr · 64K searches

According to Flapen's Amazon United States niche tracking, plastic jars with lids 4 oz is a $55K/yr Amazon United States market (64K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Nov. Verdict: Skip it — 42/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

plastic jars with lids 4 oz market data

Units sold / yr
4K–5K
avg 100–250/product
Revenue / yr
$71K–$88K
units × avg price
Conversion rate
4.9%
Avg BSR
#139
Page quality
0%
Prime
100%
Sponsored
96%
Out of stock
5.9%
Avg brand age
39 months
Avg seller age
184 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

19 falling

Sellers

22

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

60%

Top 20: 92%

Open market

28%

  • Panxxsen20%
  • Eternal Moment16%
  • TUZAZO13%
  • PYYZHALI10%
  • OBKJJ7%
  • Loretoy6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.3% search growth over the last 90 days.
2K1KSpike '24Black Friday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Nov · busiest ÷ quietest = 1.5×

Top plastic jars with lids 4 oz search terms

  • plastic jars with lids 4 oz17K/yr
  • 4 oz plastic jars with lids14K/yr
  • 4oz plastic jars with lids13K/yr
  • small plastic jars with lids 4 oz6K/yr
  • 4 oz plastic jars4K/yr
  • 4oz plastic jars3K/yr
  • cosmetic jars with lids 4 oz4K/yr
  • lotion jars with lids 4 oz3K/yr
All search terms

Top plastic jars with lids 4 oz 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%5%$3K10%$5K15%$8K20%$11K101001K10K Reviews — right = deep review moat Market 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.

What buyers say about plastic jars with lids 4 oz

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

What buyers love

Size-Overall21%

“Size is just right for the purpose i need them for”

Quality-Overall17%

“These jars are great quality”

Storage Capacity9%

“dont take up a lot of space”

Leak-Proof7%

“did not leak”

Ease Of Use7%

“These have so many great uses”

Value For Money7%

“Excellent price”

Durability4%

“They are durable”

Strength4%

“Not too flimsy”

Advertised Vs Actual Product4%

“Just as advertised”

Ease Of Feeding3%

“Makes it really easy to meal prep my babies foods at the beginning of the week AND they're freezer friendly so you can make extra to freeze”

What buyers complain about

Size-Overall33%

“it was way too big”

Leak-Proof16%

“They leak”

Advertised Vs Actual Product6%

“So I wasted money for the oz to be misleading”

Quality-Overall5%

“Not the greatest”

Ease Of Use4%

“They are hard to open due to being cheaply made”

Dishwasher Safe3%

“Not dishwasher friendly, they warp”

Ease Of Cleaning2%

“not great for reuse tho because the are kinda hard to clean”

Thickness2%

“More like a thick plastic”

Storage Capacity2%

“Not just for food storage”

Strength2%

“flimsy and melted on the top rack of the dishwasher”

Top return reasons

Size-Overall79%
Material Quality5%
Advertised Vs Actual Product5%
Value For Money2%
Quality-Overall2%
Leak-Proof2%
Functionality-Overall1%
Defective Material/Parts1%
Thin1%
Strength1%

Common questions

Is plastic jars with lids 4 oz profitable to sell on Amazon United States?
The niche generates $55K/yr across 27 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -9.3%. Flapen's verdict: Skip it (42/100).
How competitive is the plastic jars with lids 4 oz niche?
19 brands and 22 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in plastic jars with lids 4 oz?
Top complaints mined from reviews: Size-Overall, Leak-Proof, Advertised Vs Actual Product. The return rate is 2.5%.
When does demand for plastic jars with lids 4 oz peak?
Demand peaks in Nov; the busiest month runs 1.5× the quietest.
What does it cost to enter the plastic jars with lids 4 oz niche?
Listings span $7.13–$35.18; the average listing price is $17.65 (sweet spot $15–$100). The average incumbent carries 1,857 reviews — the moat a new listing must climb.