Is sinker molds profitable to sell on Amazon United States?

The niche generates $83K/yr across 20 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +34.6%. Flapen's verdict: Skip it (49/100).

How competitive is the sinker molds niche?

12 brands and 18 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 83% of demand.

What do buyers complain about in sinker molds?

Top complaints mined from reviews: Advertised Vs Actual Product, Size-Overall, Quality-Overall. The return rate is 1.6%.

When does demand for sinker molds peak?

Demand peaks in May–Jun; the busiest month runs 1.9× the quietest.

What does it cost to enter the sinker molds niche?

Listings span $8.17–$62.67; the average listing price is $37.53 (sweet spot $15–$100). The average incumbent carries 117 reviews — the moat a new listing must climb.

sinker molds

Skip it

Weak search conversion (0.7%) — this niche doesn't clear our bar today.

Avg price

Incredible$37.53

avg listing price — sweet spot $15–$100

Review moat

Great117.3

avg incumbent reviews — the moat a new listing must climb

Price range

Great$8.17–$62.67

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

Returns

Great1.6%

return rate — above 5% kills the launch gate

Growth

Good+34.6%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay63%

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

Brand share

Okay83%

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

Market size

Bad$83K

$83K/yr · 316K searches

Conversion

Bad0.7%

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

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, sinker molds is a $83K/yr Amazon United States market (316K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in May–Jun. Verdict: Skip it — 49/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

sinker molds market data

Units sold / yr: 2K–3K; avg 0–100/product
Revenue / yr: $75K–$94K; units × avg price
Conversion rate: 0.7%
Avg BSR: #410
Page quality: 0%
Prime: 95%
Sponsored: 95%
Out of stock: 6.5%
Avg brand age: 53 months
Avg seller age: 168 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

13%

MOPHOEXII44%
Cyiwniao12%
EUPHENG11%
Generic10%
Adygil7%
Molten Masters4%
Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +34.6% search growth over the last 90 days.

Peak months: May, Jun · busiest ÷ quietest = 1.9×

Open Trend

Top sinker molds search terms

fishing weight molds44K/yr +39.2%0.5% conv.
sinker molds44K/yr +28.2%0.6% conv.
lead molds29K/yr +88.4%0.1% conv.
sinker molds for fishing31K/yr +32.8%0.4% conv.
do it molds21K/yr -7.5%0.2% conv.
lead weight molds15K/yr +51.4%0.4% conv.
lead molds for fishing weights15K/yr +12.3%0.5% conv.
lead sinker molds13K/yr +45.9%0.4% conv.
sinker mold13K/yr +45.3%0.5% conv.
fishing sinker molds13K/yr +49.0%0.5% conv.

All search terms

Top sinker molds 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 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MOPHOEXII Bank Sinker Lead Mold with 2.1LB Lead Sheet Fishing Weight Molds with 3 Mold Cavities 4 oz 5 oz 6 oz Without Handle

MOPHOEXII$47.884.4★103 rev

MOPHOEXII Bank Sinker Lead Mold with 2.1LB Lead Sheet Fishing Weight Molds with 5 Mold Cavities 1 oz 2 oz 3 oz Without Handle

MOPHOEXII$38.544.4★103 rev

Eupheng Bank Sinker Mold with 5 Cavities 1 oz / 2 oz / 3 oz Fishing Weight Mold for DIY Lead Sinkers

EUPHENG$20.614.4★18 rev

Cyiwniao Sinker Mold 1.2.3-Ounce with 5 Cavities Fishing Weight Molds Sinker Molds for Fishing Fishing Casting

Cyiwniao$26.764.5★106 rev

Dimatteo Fishing No Roll Sinker Mold Kits 1oz 1.5oz 2oz 3oz 4 Cavities

Generic$51.594.3★76 rev

Newest

by launch date

Eupheng Bank Sinker Mold with 5 Cavities 1 oz / 2 oz / 3 oz Fishing Weight Mold for DIY Lead Sinkers

EUPHENG$20.6118 rev

5mo ago

Otoolling Soft Plastic Mold Lure Making Injection Molds Fishing Lures 5 Three-Cavity Aluminum Quality Soft Plastic Molds Bait Making Injection Mold for Anglers Fishing Lovers

Otoolling$62.674 rev

7mo ago

AceOrbit 3 Pack Sinker Molds Fishing Weight Molds 1.2. 3-Ounce 5 Cavities with 2 Pack 3 Inches Woodworking Clamp for Outdoor Sea Fishing Activities

AceOrbit$26.9814 rev

1y ago

MOPHOEXII Bank Sinker Lead Mold with 2.1LB Lead Sheet Fishing Weight Molds with 3 Mold Cavities 4 oz 5 oz 6 oz Without Handle

MOPHOEXII$47.88103 rev

1y ago

MOPHOEXII Bank Sinker Lead Mold with 2.1LB Lead Sheet Fishing Weight Molds with 5 Mold Cavities 1 oz 2 oz 3 oz Without Handle

MOPHOEXII$38.54103 rev

1y ago

What buyers say about sinker molds

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

What buyers love

Quality-Overall31%

“The product was pretty”

Ease Of Use14%

“Easy to use”

Value For Money11%

“The advertised price is pretty competitive”

Advertised Vs Actual Product9%

“exactly as advertised”

Size-Overall6%

“The sizes are accurate”

Efficiency4%

“Works great”

Durability4%

“is well built”

Functionality-Overall2%

“Worked great made up about 100 sinker without any problem”

Safety Standards2%

“Safety first”

Heating2%

“Works great after it warms up”

What buyers complain about

Advertised Vs Actual Product15%

“I gave this item one star because I felt the description was misleading”

Size-Overall12%

“Wrong size”

Quality-Overall9%

“The build quality feels cheap”

Heating9%

“Heating Element Burned Out on First Use”

Leak-Proof8%

“The mold leaking over to the other side shortly after using just a few times don't know what's causing this”

Value For Money8%

“Should be a little cheaper”

Rusts/Corrodes8%

“oxidization become significant hazards”

Durability6%

“Broke after about 5 uses”

Ease Of Use5%

“hard to handle”

Weight Heavy5%

“Too heavy to work with”

Top return reasons

Size-Overall40%

Advertised Vs Actual Product13%

Defective Material/Parts13%

Functionality-Overall10%

Product Condition3%

Value For Money3%

Heating3%

Quality-Overall2%

Durability2%

Weight Heavy2%

Common questions

Is sinker molds profitable to sell on Amazon United States?: The niche generates $83K/yr across 20 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +34.6%. Flapen's verdict: Skip it (49/100).
How competitive is the sinker molds niche?: 12 brands and 18 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 83% of demand.
What do buyers complain about in sinker molds?: Top complaints mined from reviews: Advertised Vs Actual Product, Size-Overall, Quality-Overall. The return rate is 1.6%.
When does demand for sinker molds peak?: Demand peaks in May–Jun; the busiest month runs 1.9× the quietest.
What does it cost to enter the sinker molds niche?: Listings span $8.17–$62.67; the average listing price is $37.53 (sweet spot $15–$100). The average incumbent carries 117 reviews — the moat a new listing must climb.

sinker molds

sinker molds market data

Competition & brand share

Demand & seasonality

Top sinker molds search terms

Top sinker molds products on Amazon

Top sellers

Newest

Trending

What buyers say about sinker molds

What buyers love

What buyers complain about

Top return reasons

Common questions

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