Is polystyrene balls profitable to sell on Amazon United Kingdom?

The niche generates £92K/yr across 43 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -18.8%. Flapen's verdict: Worth a look (52/100).

How competitive is the polystyrene balls niche?

29 brands and 43 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 54% of demand.

What do buyers complain about in polystyrene balls?

Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Value For Money. The return rate is 0.4%.

When does demand for polystyrene balls peak?

Demand peaks in Oct–Nov–Dec; the busiest month runs 3.8× the quietest.

What does it cost to enter the polystyrene balls niche?

Listings span £2.79–£15.85; the average listing price is £8.28 (sweet spot $15–$100). The average incumbent carries 1,943 reviews — the moat a new listing must climb.

polystyrene balls

Worth a look

Shows low returns (0.4%), but prices mostly outside the sweet spot ($2.79–$15.85) keeps it on the watch list.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Brand share

Great54%

top-5 brand share — no brand owns this niche

Competition

Great37%

top-5 click share — an open shelf

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good4.3%

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

Review moat

Okay1,943.23

avg incumbent reviews — the moat a new listing must climb

Market size

Bad£92K

£92K/yr · 256K searches

Avg price

Bad£8.28

avg listing price — sweet spot $15–$100

Growth

Bad-18.8%

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

Price range

Bad£2.79–£15.85

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

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, polystyrene balls is a £92K/yr Amazon United Kingdom market (256K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Worth a look — 52/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

polystyrene balls market data

Units sold / yr: 13K–15K; avg 250–500/product
Revenue / yr: £104K–£124K; units × avg price
Conversion rate: 4.3%
Avg BSR: #5,102
Page quality: 0%
Prime: 77%
Sponsored: 74%
Out of stock: 14.6%
Avg brand age: 42 months
Avg seller age: 195 days

Competition & brand share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

29 rising

Sellers

Top-5 brand share

54%

Top 20: 94%

Top-5 click share

37%

Top 20: 78%

Open market

39%

DIYASY14%
Craft Planet12%
Pllieay10%
Westminster9%
niCWhite8%
Smithers Oasis7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -18.8% search growth over the last 90 days.

Peak months: Oct, Nov, Dec · busiest ÷ quietest = 3.8×

Open Trend

Top polystyrene balls search terms

polystyrene balls162K/yr -17.4%4.3% conv.
styrofoam balls29K/yr -17.4%4.0% conv.
polystyrene ball9K/yr -27.6%2.9% conv.
foam balls for crafts9K/yr -28.1%4.3% conv.
large polystyrene balls9K/yr -24.6%4.0% conv.
10cm polystyrene balls6K/yr -12.8%8.2% conv.
polystyrene balls large7K/yr -27.4%2.9% conv.
styrofoam ball4K/yr -18.5%2.3% conv.
craft balls4K/yr -25.9%1.1% conv.
5cm polystyrene balls3K/yr -1.6%8.0% conv.

All search terms

Top polystyrene 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★)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

Craft Planet Polystyrene Balls 40 Pieces White Assorted Sizes for Arts and Crafts Kids Kids Basic Shapes Perfect Base Decoupage Painting Bauble-Making

Craft Planet£4.004.5★2,498 rev

Styropor Solid Spheres Styrofoam Polystyrene Balls Pack of 5 (10cm)

Smithers Oasis£7.144.5★549 rev

Bean Bag Filling Refill Booster Polystyrene Extra Beads Top Up Bag Beans Balls Various Sizes (1 Cubic Feet)

Westminster£7.234.4★13,162 rev

Pllieay 20 Pieces 5 Sizes Christmas White Foam Balls Polystyrene Craft Balls Art Decoration Foam Balls for Art Craft Household School Projects and Easter Party Decoration

Pllieay£7.794.4★3,116 rev

niCWhite White Foam Balls Polystyrene Balls Styrofoam Craft Balls 80pcs

niCWhite£7.624.2★111 rev

Newest

by launch date

Ouligay 100 PCS White Foam Balls for Crafts 0.79 Inch Small Craft Foam Balls Polystyrene Craft Foam Balls for Handmade DIY Crafts Household and Holiday Party Decorations

Ouligay£3.230 rev

3mo ago

200 Pcs Polystyrene Balls 0.6 Inch White Round Foam Balls Smooth Lightweight Polystyrene Spheres for DIY Crafts Wedding Decoration Art Projects

FRCTLNKG£3.133 rev

4mo ago

100 Pcs Polystyrene Balls Diameter 2.5cm White Foam Balls Craft Foam Ball for School Project Art Craft and DIY Decoration Party Wedding Decorations

Matwsec£3.834 rev

5mo ago

ASelected 40PCS Polystyrene balls 6CM Polystyrene Balls White Craft Balls Christmas Foam Balls Solid Sphere Foam Balls Modeling Round Balls for DIY Arts Projects Wedding Decorations

ASelected£6.546 rev

1y ago

Craftplay Polystyrene Balls Jumbo Pack | White | Assorted Sizes | Pack of 100 Balls! | Poly Spheres

Craftplay£9.3410 rev

2y ago

What buyers say about polystyrene balls

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

What buyers love

Advertised Vs Actual Product23%

“As Described”

Quality-Overall22%

“Good quality and arrived quickly”

Value For Money12%

“The amount is good”

Color7%

“Colourful”

Ease Of Use6%

“Easy to use”

Size-Overall6%

“These were perfect seeing I could choose the best size for that job”

Fun/Entertainment Experience6%

“Kids have so much fun playing with these”

Ease Of Cleaning3%

“Easy to clean and keeps shape”

Maintenance And Repair2%

“Good value for repairs”

Material Quality2%

“good crafting material”

What buyers complain about

Size-Overall27%

“Tiny bag”

Advertised Vs Actual Product16%

“False advertising”

Value For Money15%

“Not worth the price”

Quality-Overall7%

“Poor quality”

Smell4%

“the smell on them when they were delivered was disgusting”

Flatness4%

“by the start of July said beanbag was completely flat again”

Hard Feel4%

“Too soft”

Leak-Proof3%

“There was hardly any beans looked like the bag had leaked or something it would barely stuff a pillow let alone a bean bag”

Fun/Entertainment Experience3%

“I found this toy to be more of a nuisance”

Functionality-Overall3%

“Not much to add they did the job they were intended for”

Top return reasons

Size-Overall71%

Quality-Overall6%

Advertised Vs Actual Product6%

Color5%

Value For Money2%

Material Quality2%

Soft Feel1%

Product Condition1%

Adhesion/Stickiness1%

Hard Feel1%

Common questions

Is polystyrene balls profitable to sell on Amazon United Kingdom?: The niche generates £92K/yr across 43 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -18.8%. Flapen's verdict: Worth a look (52/100).
How competitive is the polystyrene balls niche?: 29 brands and 43 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in polystyrene balls?: Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Value For Money. The return rate is 0.4%.
When does demand for polystyrene balls peak?: Demand peaks in Oct–Nov–Dec; the busiest month runs 3.8× the quietest.
What does it cost to enter the polystyrene balls niche?: Listings span £2.79–£15.85; the average listing price is £8.28 (sweet spot $15–$100). The average incumbent carries 1,943 reviews — the moat a new listing must climb.