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Ninja Birthday Party Decorations

Maybe

The average product has only 101 reviews. But demand is soft, at -16.4% this quarter, so Ninja Birthday Party Decorations is a Maybe.

Flapen Score
50
50 / 100
Top 43% of 11,240 Home & Kitchen niches · +1 vs the category median of 49
Market size
$93K/yr121K searches / yr
90-day growth
-16.4%search demand this quarter
Competition
41%top-5 click share · 26 brands · 27 sellers

Flapen Score

Ninja Birthday Party Decorations against its category

The dotted line is the Home & Kitchen average. Past it, Ninja Birthday Party Decorations is stronger. Inside it, weaker.

50Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Ninja Birthday Party Decorations market on Amazon at a glance

Shoppers on Amazon United States searched for Ninja Birthday Party Decorations 121K times last year and spent an estimated $93K. The top 5 brands take 55% of clicks. Flapen scores it 50 out of 100, a Maybe.

01 · Demand

An estimated 4.3% of those searches ended in a purchase.

Shoppers searched for this 121K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.3% of those searches ended in a purchase. Searches in the last 90 days moved -16.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $93K a year.

Searches, last 12 months
121K
Growth, 90 days vs prior 90
-16.4%
Conversion, latest week
4.3%
Market size, estimated
$93Ka year
Peak month
September1.9× the quietest month
Top search term
ninja birthday party decorations39K searches a year

02 · Price

A sale here is worth $18.04.

Listings sell for $18.04 on average, from $6.92 to $40.19. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 100 to 250 of them. At $18.04 that is $2K to $5K a year per listing.

Average price
$18.04inside the $15 to $100 sweet spot
Price range
$6.92–$40.19
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
100–250
Revenue per listing a year
$2K–$5K
Returns
3.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads.

91% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 5.3% of listings are out of stock. The average listing ranks #2,188 within Party Packs. It carries 101 reviews at 4.63 stars, so a new listing needs social proof before a better product.

Sponsored listings
91%
Prime listings
100%
Out of stock, average day
5.3%
Average rank
#2,188in Party Packs
Average rating
4.63 starsAmazon United States average 4.42 stars
Average reviews
101per listing
Listings tracked
35

04 · Newcomers

2 of last year's 8 launches cleared the first-year sales bar.

8 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 34 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
8
Successful launches
2Amazon's first-year sales bar
Average brand age
34 months

Products

Top Ninja Birthday Party Decorations products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 41% of clicks. Leaders hold, but buyers still shop past them.

Brands

26 falling

Sellers

27

Top-5 brand share

55%

Top 20: 95%

Top-5 click share

41%

Top 20: 84%

Open market

41%

  • Brand 122%
  • Brand 215%
  • Brand 37%
  • Brand 46%
  • Brand 55%
  • Brand 65%

Demand

Ninja Birthday Party Decorations search demand

Weekly searches over the year, seasonality beneath. Pick a range.

4K3KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.9×

Search terms

Top Ninja Birthday Party Decorations search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • ninja birthday party decorations39K/yr
  • ninja party decorations24K/yr
  • ninja party12K/yr
  • ninja birthday9K/yr
  • ninja birthday decorations7K/yr
  • ninja decorations5K/yr
  • ninja kids birthday party decorations6K/yr
  • ninja birthday party6K/yr
  • ninja party supplies5K/yr
  • ninja kidz party decorations8K/yr

Reviews and returns

What reviews say buyers love and hate about Ninja Birthday Party Decorations

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Quality-Overall”
13%of negative reviews mention “Inflation/Deflation”
3.0%of orders come back
“most of them deflated with play”
A buyer, on “Inflation/Deflation”13% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

20 topics

NegativePositive

FAQ

Common Ninja Birthday Party Decorations questions

Answered from the same tracked data.