---
title: "Ninja Kids Ball — $1K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/sports-outdoors/ninja-kids-ball"
last_updated: "2026-08-12T17:45:36.745Z"
locale: en
meta:
description: "Amazon product research for ninja kids ball: $1K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for ninja kids ball: $1K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Ninja Kids Ball — $1K/mo Amazon US Product Research (2026)"
---
# **Ninja Kids Ball**
**Skip it**
A small market ($13K/yr) — this niche doesn't clear our bar today.
Market size 3Growth 36Conversion 9Competition 50Returns 33Price range 72Avg price 95Brand share 44Review moat 79Quality gap 38
**Avg price**
**Incredible****$28.38**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****427.67**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$9.50–$127.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+9.2%**
90-day search growth — must beat 0% to launch
**Returns**
**Okay****4.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****0.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$13K**
$13K/yr · 64K searches
## **Is ninja kids ball profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, ninja kids ball is a $13K/yr Amazon United States market (64K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Aug–Dec. Verdict: Skip it — 38/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ninja kids ball market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **$7K–$14K**
- units × avg price
- **Conversion rate**
- **0.7%**
- **Avg BSR**
- **#2,594**
- **Page quality**
- **0%**
- **Prime**
- **70%**
- **Sponsored**
- **48%**
- **Out of stock**
- **11.7%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **145 days**
## **Competition: brands, sellers & click share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▲rising
**Sellers**
**22**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 94%
**Open market**
**17%**
- Ninja Kidz35% - Ball Baron21% - Rzkipdy9% - NINJA KIDZ TV7% - PlayBolt6% - Ninja kidz5% - Open — no brand owns it (8 brands, 17%)
## **ninja kids ball demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +9.2% search growth over the last 90 days.
5K3KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Dec · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/ninja-kids-ball/trend)
## **Top ninja kids ball search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **ninja kidz mystery ball**14K/yr+35.6%0.1% conv. - **ninja kids ball**16K/yr+2.2%0.2% conv. - **ninja ball**10K/yr-3.3%1.9% conv. - **ninja kidz ball**9K/yr-9.5%0.1% conv. - **ninja balls**3K/yr+13.6%0.7% conv. - **ninja kids mystery ball**4K/yr-17.8%0.0% conv. - **ninja balls ninja kids**2K/yr+31.6%0.1% conv. - **ninja kids balls**2K/yr+15.4%0.2% conv. - **ninja kid ball**2K/yr-24.8%0.0% conv. - **ninja kids ninja ball**1K/yr-17.2%0.5% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/ninja-kids-ball/search-terms)
## **Top ninja kids ball products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$65510%$1K15%$2K20%$3K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ball Baron Ninja Ultra Shiny Pinballs Made in The USA! (12 Pack)**Ball Baron**$29.71**4.3★29 rev](https://www.amazon.com/dp/B0D186WLZP) [2**Ninja Kidz Official Original Logo Girls Shirt Dress Your Ninja Kids in Cool Kids Clothes Ninja Shirt Merch & Tee for Girls Raspberry Pink T Shirt Size Youth Small**Ninja Kidz**$26.59**4.5★495 rev](https://www.amazon.com/dp/B08NFFS838) [3**Rzkipdy Silent Basketball Size 5 (27.5) Not Vacuum Shipped - 2025 Upgraded Airless Soft Foam Ball Soundless for Quiet Dribbling and Indoor Training Real Feel Higher Bounce No Noise**Rzkipdy**$27.15**4.3★311 rev](https://www.amazon.com/dp/B0FHFSQWPP) [4**Ninja Kidz Official Original Logo Boys Pullover Hoodie Dress your Ninja Kids in Cool Kids Clothes Ninja Sweatshirt Merch & Boys Sweaters Orange Hoodie Size Youth Small**Ninja Kidz**$40.40**4.7★482 rev](https://www.amazon.com/dp/B08NFFGFB2) [5**8.5 Sports Balls for Kids & Toddlers - (Pack of 4) Rubber Inflatable Multi-Sport Ball Set - Football Soccer Ball Basketball Playground Ball & Pump - Birthday Gift Toys for Boys & Girls**PlayBolt**$18.68**4.6★1,575 rev](https://www.amazon.com/dp/B0F31KRF24)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ninja Kidz Official Eyes T-Shirt Dress Your Ninja Kids in Cool Kids Clothes Ninja Shirt Merch & Tee for Girls and Boys Purple T Shirt Size Youth Large**NINJA KIDZ TV**$29.92**2 rev4mo ago](https://www.amazon.com/dp/B0GRWZ3XPS) [**Ninja Kidz Official Eyes T-Shirt Dress Your Ninja Kids in Cool Kids Clothes Ninja Shirt Merch & Tee for Girls and Boys Orange T Shirt Size Youth Small**NINJA KIDZ TV**$29.81**2 rev4mo ago](https://www.amazon.com/dp/B0GRX286Q5) [**Official Merch Ninja Kidz Headband Black Birthday Boy Headband Birthday Headbands Sports Headbands for Girls and Boys Comfortable Breathable & Stretchy**Ninja Kidz**$9.97**4 rev6mo ago](https://www.amazon.com/dp/B0GGDDZNR5) [**Ninja Kidz Mystery Figures - Series 2 Collectible Mini Figures Officially Licensed Ninja Kids Merch -24pk Party Pack**Ninja kidz**$127.87**0 rev11mo ago](https://www.amazon.com/dp/B0FL9ZPVYR) [**Rzkipdy Silent Basketball Size 5 (27.5) Not Vacuum Shipped - 2025 Upgraded Airless Soft Foam Ball Soundless for Quiet Dribbling and Indoor Training Real Feel Higher Bounce No Noise**Rzkipdy**$27.15**311 rev1y ago](https://www.amazon.com/dp/B0FHFSQWPP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Gejoy 24 Pieces Soft Foam Balls Bulk Lightweight Mini Balls for Safe Indoor Toys Fun Assorted Colors Sponge Balls Birthday Party Favors Bag Gifts for Boys and Girls(1.57 Inch)**Gejoy**$13.68**4.4★**▲ 115%**](https://www.amazon.com/dp/B086Q17S22) [**Official Merch Ninja Kidz Headband Black Birthday Boy Headband Birthday Headbands Sports Headbands for Girls and Boys Comfortable Breathable & Stretchy**Ninja Kidz**$9.97**5.0★**▲ 113%**](https://www.amazon.com/dp/B0GGDDZNR5) [**ZOOJOY Pack of 2 Cartoon Playground Balls Balls for Toddler 3-12 8.5 Rubber Ball Bouncy Kickball Indoor & Outdoor Ball Game for Kids with Pump**ZOOJOY**$22.52**4.4★**▲ 107%**](https://www.amazon.com/dp/B0C8HCJZ7R) [**Ninja Kidz Official Original Logo Tee Boys Shirt Dress Your Ninja Kids in Cool Kids Clothes Ninja Shirt Merch & Tee for Boys Green Youth Size X-Small**Ninja Kidz**$26.94**4.7★**▲ 101%**](https://www.amazon.com/dp/B08L46RPH5) [**Ninja Kidz Official Eyes T-Shirt Dress Your Ninja Kids in Cool Kids Clothes Ninja Shirt Merch & Tee for Girls and Boys Orange T Shirt Size Youth Small**NINJA KIDZ TV**$29.81**5.0★**▲ 84%**](https://www.amazon.com/dp/B0GRX286Q5)
**~~View all trending →~~**
## **What reviews say buyers love and hate about ninja kids ball**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Noise Level**14%
*“This is truly quiet”*
**Fun/Entertainment Experience**13%
*“cool toy”*
**Quality-Overall**12%
*“The quality of these is very apparent when you get them”*
**Suitable For Indoor**11%
*“Great for indoor use”*
**Size-Overall**7%
*“They are a good size”*
**Advertised Vs Actual Product**4%
*“Work as advertised”*
**Value For Money**4%
*“this is 100% worth the purchase”*
**Inflation/Deflation**3%
*“easy to inflate”*
**Durability**3%
*“Great durability for the price”*
**Soft Feel**3%
*“Ball is soft”*
### **What buyers complain about **
**Durability**31%
*“Fell Apart”*
**Size-Overall**18%
*“This is a smaller ball”*
**Quality-Overall**15%
*“very cheap quality”*
**Value For Money**4%
*“you can get it much cheaper at the stores”*
**Advertised Vs Actual Product**2%
*“Misleading”*
**Fun/Entertainment Experience**2%
*“too much bounce, silly and not really fun to play with”*
**Product Condition**2%
*“looked very used”*
**Material Quality**2%
*“I see the material of this ball just comes off after few days”*
**Ease Of Cleaning**2%
*“leaves a mess”*
**Color**2%
*“Ok But not as colorful”*
### **Top return reasons **
**Size-Overall**79%
**Advertised Vs Actual Product**5%
**Value For Money**4%
**Quality-Overall**2%
**Functionality-Overall**1%
**Material Quality**1%
**Noise Level**1%
**Durability**1%
**Hard Feel**1%
**Defective Material/Parts**1%
## **Common ninja kids ball questions**
- **Is ninja kids ball profitable to sell on Amazon United States?**
- The niche generates $13K/yr across 27 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is +9.2%. Flapen's verdict: Skip it (38/100).
- **How competitive is the ninja kids ball niche?**
- 14 brands and 22 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in ninja kids ball?**
- Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 4.3%.
- **When does demand for ninja kids ball peak?**
- Demand peaks in Aug–Dec; the busiest month runs 3.1× the quietest.
- **What does it cost to enter the ninja kids ball niche?**
- Listings span $9.50–$127.87; the average listing price is $28.38 (sweet spot $15–$100). The average incumbent carries 428 reviews — the moat a new listing must climb.
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