Is four square balls profitable to sell on Amazon United States?

The niche generates $110K/yr across 25 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +18.9%. Flapen's verdict: Worth a look (54/100).

How competitive is the four square balls niche?

11 brands and 32 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 85% of demand.

What do buyers complain about in four square balls?

Top complaints mined from reviews: Size-Overall, Durability, Inflation/Deflation. The return rate is 1.3%.

When does demand for four square balls peak?

Demand peaks in Apr–May; the busiest month runs 2.9× the quietest.

What does it cost to enter the four square balls niche?

Listings span $7.31–$28.24; the average listing price is $13.40 (sweet spot $15–$100). The average incumbent carries 718 reviews — the moat a new listing must climb.

four square balls

Worth a look

Shows low returns (1.3%), but a small market ($110K/yr) keeps it on the watch list.

Returns

Great1.3%

return rate — above 5% kills the launch gate

Conversion

Great8.7%

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

Review moat

Good718.08

avg incumbent reviews — the moat a new listing must climb

Price range

Good$7.31–$28.24

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good$13.40

avg listing price — sweet spot $15–$100

Growth

Okay+18.9%

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

Competition

Okay59%

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

Brand share

Okay85%

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

Market size

Okay$110K

$110K/yr · 94K searches

According to Flapen's Amazon United States niche tracking, four square balls is a $110K/yr Amazon United States market (94K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 54/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

four square balls market data

Units sold / yr: 10K–13K; avg 250–500/product
Revenue / yr: $134K–$168K; units × avg price
Conversion rate: 8.7%
Avg BSR: #86
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 1.9%
Avg brand age: 73 months
Avg seller age: 190 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

59%

Top 20: 95%

Open market

10%

PlayBolt28%
Champion Sports26%
Yelaonen16%
EVERICH TOY9%
LovesTown6%
AppleRound5%
Open — no brand owns it (5 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +18.9% search growth over the last 90 days.

Peak months: Apr, May · busiest ÷ quietest = 2.9×

Open Trend

Top four square balls search terms

4 square ball40K/yr +24.4%8.6% conv.
four square balls28K/yr +11.4%9.3% conv.
four square ball16K/yr +27.0%9.1% conv.
rhino ball4K/yr +0.2%4.0% conv.
foursquare ball4K/yr +8.2%9.3% conv.
4 square balls3K/yr +16.3%3.5% conv.

All search terms

Top four square balls 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Red & Blue Kickball Set - (8.5 Inch) with Pump for Toddlers Kids & Adults - Gym Sports Toys - Fun Playground Balls for Kids Dodgeball Four Square PE Games Recess and More

PlayBolt$13.694.6★468 rev

Yelaonen 10 Inch Kickball Playground Ball Dodgeball Balls 4 Square Balls Pack of 3 Dodge Balls for Kids Kickballs Handball for Indoor Outdoor Games Includes Pump

Yelaonen$15.824.1★87 rev

EVERICH TOY Playground Balls Kickball 6 or 12 Pack 8.5 Soft Dodgeballs Bouncy Rubber Kick Balls for Kids Adults Outdoor Indoor 4 Square Ball School Yard Games for Boys Girls 3-5 5-8 8-12 with Pump

EVERICH TOY$23.984.5★894 rev

Champion Sports Rhino Playground Balls 8.5D - Two Ply Nylon Wound BLUE

Champion Sports$8.284.4★1,118 rev

Champion Sports 10 Inch Playground Ball Red

Champion Sports$10.764.5★2,863 rev

Newest

by launch date

10 Inch Red & Blue Kickball Set - (2-Pack) with Pump - Large Playground Balls for Kids Teens & Adults - Gym Sports Balls for Kickball PE Recess Four Square & Backyard Games

PlayBolt$17.50468 rev

5mo ago

Yelaonen 10 Inch Kickball Playground Ball Dodgeball Balls 4 Square Balls Pack of 3 Dodge Balls for Kids Kickballs Handball for Indoor Outdoor Games Includes Pump

Yelaonen$15.8287 rev

6mo ago

Amazon Basics 10-Inch Playground Kickball 2-Pack Red with Pump

Amazon Basics$19.65107 rev

11mo ago

EVERICH TOY Playground Balls Kickball 6 or 12 Pack 8.5 Soft Dodgeballs Bouncy Rubber Kick Balls for Kids Adults Outdoor Indoor 4 Square Ball School Yard Games for Boys Girls 3-5 5-8 8-12 with Pump

EVERICH TOY$23.98894 rev

1y ago

10 Inch Kickball Playground Balls - (Pack of 6) Inflatable Rubber Indoor Outdoor Bouncy Balls for Adults & Kids - Dodgeballs Kickballs Four Square and Handballs for School Gym with Hand Pump

PlayBolt$28.24430 rev

1y ago

What buyers say about four square balls

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

What buyers love

Quality-Overall15%

“quality of these balls are good”

Fun/Entertainment Experience14%

“Great for summer fun”

Size-Overall10%

“Nice size”

Durability10%

“It is durable”

Value For Money9%

“Decent price”

Inflation/Deflation9%

“Doesn't deflate”

Color6%

“The colors are bright”

Advertised Vs Actual Product5%

“Exactly what I ordered”

Grip2%

“Grip and texture were spot on and made aiming your throws a lot easier”

Material Quality2%

“The material is strong”

What buyers complain about

Size-Overall17%

“Not the same size”

Durability15%

“Does not last”

Inflation/Deflation14%

“The ball came deflated”

Quality-Overall10%

“Trash”

Leak-Proof5%

“it sprung a leak”

Thickness3%

“Much thicker material than a well known store”

Rubber Quality2%

“Within 2 months the rubber was brittle and developed leaks”

Advertised Vs Actual Product2%

“Now I'm kicking myself for not reading the description”

Weight Light2%

“Too Light”

Value For Money1%

“Also this ball is way too expensive”

Top return reasons

Size-Overall49%

Inflation/Deflation16%

Functionality-Overall5%

Leak-Proof5%

Value For Money5%

Advertised Vs Actual Product4%

Durability2%

Smell2%

Defective Material/Parts1%

Hard Feel1%

Common questions

Is four square balls profitable to sell on Amazon United States?: The niche generates $110K/yr across 25 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +18.9%. Flapen's verdict: Worth a look (54/100).
How competitive is the four square balls niche?: 11 brands and 32 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 85% of demand.
What do buyers complain about in four square balls?: Top complaints mined from reviews: Size-Overall, Durability, Inflation/Deflation. The return rate is 1.3%.
When does demand for four square balls peak?: Demand peaks in Apr–May; the busiest month runs 2.9× the quietest.
What does it cost to enter the four square balls niche?: Listings span $7.31–$28.24; the average listing price is $13.40 (sweet spot $15–$100). The average incumbent carries 718 reviews — the moat a new listing must climb.