plastic knives
Launch itA $3.1M/yr market growing +1.8% this quarter with returns at 0.3% — clears our launch bar.
Conversion
Incredible29.1%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Market size
Incredible$3.1M$3.1M/yr · 732K searches
Avg price
Good$14.58avg listing price — sweet spot $15–$100
Price range
Good$5.78–$32.53cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good948.07avg incumbent reviews — the moat a new listing must climb
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Growth
Okay+1.8%90-day search growth — must beat 0% to launch
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, plastic knives is a $3.1M/yr Amazon United States market (732K searches/yr). The top 5 brands hold 83% of demand. Verdict: Launch it — 58/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
plastic knives market data
- Units sold / yr
- 150K–200K
- avg 10,000–12,500/product
- Revenue / yr
- $2.2M–$2.9M
- units × avg price
- Conversion rate
- 29.1%
- Avg BSR
- #11
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 3.2%
- Avg brand age
- 60 months
- Avg seller age
- 161 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
12 flat
Sellers
20
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
10%
- Amazon Basics32%
- Dealusy27%
- POSATE9%
- DineNshine8%
- Dipoo7%
- SACATR7%
- Open — no brand owns it (6 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +1.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top plastic knives search terms
- plastic knives371K/yr
- plastic knives heavy duty76K/yr
- plastic knife62K/yr
- plastic knives disposable44K/yr
- disposable knives34K/yr
- clear plastic knives28K/yr
- heavy duty plastic knives21K/yr
- clear plastic knives heavy duty13K/yr
- plastic knifes11K/yr
- knives plastic disposable14K/yr
Top plastic knives 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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Amazon Basics Disposable Clear Plastic Knives Premium Quality 100 Count
Amazon Basics$5.784.8★94 rev
Dealusy 360 Count Extra Heavy Duty Clear Plastic Knives Disposable BPA-Free Heat Resistant Solid and Durable Disposable Knives Bulk Premium Plastic Knives heavy duty for Party Supply
Dealusy$25.714.8★1,114 rev
Dealusy 100 Count Extra Heavy Duty Clear Plastic Knives Disposable BPA-Free Heat Resistant Solid and Durable Disposable Knives Bulk Premium Plastic Knives heavy duty for Party Supply
Dealusy$10.164.8★980 rev
POSATE Clear Knives Heavy-Duty Crystal (100 Knives)
POSATE$9.554.8★1,953 rev
Dipoo 7.5 Clear Plastic Knives Heavy Duty Upgraded Heat Resistant & BPA Free Solid and Durable Plastic Cutlery Premium Disposable Knives for Party Supply(84 Count)
Dipoo$7.934.7★1,134 rev
Newest
by launch dateAmazon Basics Disposable Clear Plastic Knives Premium Quality 100 Count
Amazon Basics$5.7894 rev
Voatree 390 Count Heavy Duty Disposable Clear Plastic Knives 7 Inch Bulk
Voatree$18.2635 rev
DineNshine 100 Pieces Clear Plastic Knives Heavy Duty Disposable - BPA-Free Heat Resistant Durable and Solid Premium Plastic knives for Party Supplies
DineNshine$8.1089 rev
Fracurs 7.5 Extra Plastic Knives Heavy Duty 120 Count Premium Disposable Plastic Knives Bulk BPA-free & Heat Resistant Solid and Sturdy Clear Knives for Parties Events and Daily Use
Fracurs$9.0967 rev
QualQuot 400 Count Heavy Duty Clear Plastic Knives Solid and Durable Disposable Knives BPA-Free and Heat Resistant Premium Disposable Knive for Daily Use and Party
QualQuot$23.0972 rev
Trending
90-day click momentumVoatree 390 Count Heavy Duty Disposable Clear Plastic Knives 7 Inch Bulk
Voatree$18.264.5★
Amazon Basics Disposable Clear Plastic Knives Premium Quality 100 Count
Amazon Basics$5.784.8★
600Pack Disposable Plastic Knives Bulk White Heavy Duty Silverware - Value Pack Cutlery Set For Parties Restaurant (600KNIVES)
biocean$26.594.8★
QualQuot 400 Count Heavy Duty Clear Plastic Knives Solid and Durable Disposable Knives BPA-Free and Heat Resistant Premium Disposable Knive for Daily Use and Party
QualQuot$23.095.0★
DineNshine 100 Pieces Clear Plastic Knives Heavy Duty Disposable - BPA-Free Heat Resistant Durable and Solid Premium Plastic knives for Party Supplies
DineNshine$8.104.4★
What buyers say about plastic knives
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality”
“Great value”
“Strong and sturdy”
“Pretty durable”
“as advertised”
“Easy to use”
“good size”
“These ones are so heavy duty”
“The thickness it good”
“The knife is strong”
What buyers complain about
“Not very strong”
“They are a little heavier weight”
“Not durable at all”
“Poor quality”
“Too small”
“They are as bendable as a piece of grass”
“Cheap material”
“They are not overly sharp”
“I was expecting them to be a little thicker because the box says extra heavy duty”
“I noticed that the price has gone up by almost $3”
Top return reasons
Common questions
- Is plastic knives profitable to sell on Amazon United States?
- The niche generates $3.1M/yr across 15 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +1.8%. Flapen's verdict: Launch it (58/100).
- How competitive is the plastic knives niche?
- 12 brands and 20 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in plastic knives?
- Top complaints mined from reviews: Strength, Weight Heavy, Durability. The return rate is 0.3%.
- When does demand for plastic knives peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the plastic knives niche?
- Listings span $5.78–$32.53; the average listing price is $14.58 (sweet spot $15–$100). The average incumbent carries 948 reviews — the moat a new listing must climb.