---
title: "Polystyrene Balls — £92K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/polystyrene-balls"
last_updated: "2026-07-31T18:44:56.648Z"
locale: en
meta:
  description: "Niche score 52/100 · £92K/yr market · 256K searches/yr. Prices mostly outside the sweet spot ($2.79–$15.85) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 52/100 · £92K/yr market · 256K searches/yr. Prices mostly outside the sweet spot ($2.79–$15.85) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Polystyrene Balls — £92K/yr Amazon UK Niche (2026) - Flapen"
---

# **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.

Market size 23Growth 16Conversion 53Competition 78Returns 98Price range 7Avg price 23Brand share 81Review moat 46Quality gap 72

**Returns**

**Incredible****0.4%**

return rate — above 5% kills the launch gate

**Brand share**

**Great****54%**

top-5 brand share — no brand owns this niche

**Competition**

**Great****37%**

top-5 click share — an open shelf

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Good****4.3%**

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

**Review moat**

**Okay****1,943.23**

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**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")

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 ~~](https://flapen.com/research/methodology)

## **polystyrene balls market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**13K–15K**</dd><dd>avg 250–500/product</dd>

<dt>**Revenue / yr**</dt><dd>**£104K–£124K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**4.3%**</dd>

<dt>**Avg BSR**</dt><dd>**#5,102**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**77%**</dd>

<dt>**Sponsored**</dt><dd>**74%**</dd>

<dt>**Out of stock**</dt><dd>**14.6%**</dd>

<dt>**Avg brand age**</dt><dd>**42 months**</dd>

<dt>**Avg seller age**</dt><dd>**195 days**</dd>

</dl>

## **Competition & brand share**

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

**Brands**

**29 **▲rising

**Sellers**

**43**

**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.

10K6KSpike '24Holiday '24Spike '25 seasonSepDecMarJunAugNovMarMay

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

[**Open Trend **](https://flapen.com/research/uk/home-garden/polystyrene-balls/trend)

## **Top polystyrene balls search terms**

- **polystyrene balls**162K/yr-17.4%4.3% conv. - **styrofoam balls**29K/yr-17.4%4.0% conv. - **polystyrene ball**9K/yr-27.6%2.9% conv. - **foam balls for crafts**9K/yr-28.1%4.3% conv. - **large polystyrene balls**9K/yr-24.6%4.0% conv. - **10cm polystyrene balls**6K/yr-12.8%8.2% conv. - **polystyrene balls large**7K/yr-27.4%2.9% conv. - **styrofoam ball**4K/yr-18.5%2.3% conv. - **craft balls**4K/yr-25.9%1.1% conv. - **5cm polystyrene balls**3K/yr-1.6%8.0% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/polystyrene-balls/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.

0%4%£4K8%£7K12%£11K16%£15K1101001K10K100K 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![Craft Planet Polystyrene Balls 40 Pieces White Assorted Sizes for Arts and Crafts Kids Kids Basic Shapes Perfect Base Decoupage Painting Bauble-Making](https://m.media-amazon.com/images/I/31QLrt296ZL.jpg)**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**£4.00**4.5★2,498 rev](https://www.amazon.co.uk/dp/B005QNBD2A) [2![Styropor Solid Spheres Styrofoam Polystyrene Balls Pack of 5 (10cm)](https://m.media-amazon.com/images/I/31rVfZ65BTL.jpg)**Styropor Solid Spheres Styrofoam Polystyrene Balls Pack of 5 (10cm)**Smithers Oasis**£7.14**4.5★549 rev](https://www.amazon.co.uk/dp/B00F1WPDPO) [3![Bean Bag Filling Refill Booster Polystyrene Extra Beads Top Up Bag Beans Balls Various Sizes (1 Cubic Feet)](https://m.media-amazon.com/images/I/21RchZRyi6L.jpg)**Bean Bag Filling Refill Booster Polystyrene Extra Beads Top Up Bag Beans Balls Various Sizes (1 Cubic Feet)**Westminster**£7.23**4.4★13,162 rev](https://www.amazon.co.uk/dp/B0757KHDW2) [4![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](https://m.media-amazon.com/images/I/31XZYEDzopL.jpg)**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**£7.79**4.4★3,116 rev](https://www.amazon.co.uk/dp/B07DKZP43B) [5![niCWhite White Foam Balls Polystyrene Balls Styrofoam Craft Balls 80pcs](https://m.media-amazon.com/images/I/31mDuFT+5NL.jpg)**niCWhite White Foam Balls Polystyrene Balls Styrofoam Craft Balls 80pcs**niCWhite**£7.62**4.2★111 rev](https://www.amazon.co.uk/dp/B0B2LGPQ34)

**~~View all top sellers →~~**

### **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](https://m.media-amazon.com/images/I/419GoZ7kLdL.jpg)**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**£3.23**0 rev3mo ago](https://www.amazon.co.uk/dp/B0GYFG7PLY) [![200 Pcs Polystyrene Balls 0.6 Inch White Round Foam Balls Smooth Lightweight Polystyrene Spheres for DIY Crafts Wedding Decoration Art Projects](https://m.media-amazon.com/images/I/41azsiyHynL.jpg)**200 Pcs Polystyrene Balls 0.6 Inch White Round Foam Balls Smooth Lightweight Polystyrene Spheres for DIY Crafts Wedding Decoration Art Projects**FRCTLNKG**£3.13**3 rev4mo ago](https://www.amazon.co.uk/dp/B0GTM66CMM) [![100 Pcs Polystyrene Balls Diameter 2.5cm White Foam Balls Craft Foam Ball for School Project Art Craft and DIY Decoration Party Wedding Decorations](https://m.media-amazon.com/images/I/41HqG-3tVjL.jpg)**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**£3.83**4 rev5mo ago](https://www.amazon.co.uk/dp/B0GCNTLF41) [![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](https://m.media-amazon.com/images/I/31t9f+uxXRL.jpg)**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**£6.54**6 rev1y ago](https://www.amazon.co.uk/dp/B0DQL65W67) [![Craftplay Polystyrene Balls Jumbo Pack | White | Assorted Sizes | Pack of 100 Balls! | Poly Spheres](https://m.media-amazon.com/images/I/41M53NrsmQL.jpg)**Craftplay Polystyrene Balls Jumbo Pack | White | Assorted Sizes | Pack of 100 Balls! | Poly Spheres**Craftplay**£9.34**10 rev2y ago](https://www.amazon.co.uk/dp/B0D1RKQSCP)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![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](https://m.media-amazon.com/images/I/419GoZ7kLdL.jpg)**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**£3.23**0.0★**▲ 439%**](https://www.amazon.co.uk/dp/B0GYFG7PLY) [![200 Pcs Polystyrene Balls 0.6 Inch White Round Foam Balls Smooth Lightweight Polystyrene Spheres for DIY Crafts Wedding Decoration Art Projects](https://m.media-amazon.com/images/I/41azsiyHynL.jpg)**200 Pcs Polystyrene Balls 0.6 Inch White Round Foam Balls Smooth Lightweight Polystyrene Spheres for DIY Crafts Wedding Decoration Art Projects**FRCTLNKG**£3.13**4.2★**▲ 428%**](https://www.amazon.co.uk/dp/B0GTM66CMM) [![DIVCHI Playballs Soft Pit Balls for Kids Small Colourful Plastic Balls durable Smooth Surface and No Sharp Edges Toxic Free Multi Pack Baby Approved Playball Set](https://m.media-amazon.com/images/I/51Luf6gLHtL.jpg)**DIVCHI Playballs Soft Pit Balls for Kids Small Colourful Plastic Balls durable Smooth Surface and No Sharp Edges Toxic Free Multi Pack Baby Approved Playball Set**DIVCHI**£7.84**4.5★**▲ 412%**](https://www.amazon.co.uk/dp/B088WHC1JB) [![100 Pcs Polystyrene Balls Diameter 2.5cm White Foam Balls Craft Foam Ball for School Project Art Craft and DIY Decoration Party Wedding Decorations](https://m.media-amazon.com/images/I/41HqG-3tVjL.jpg)**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**£3.83**3.9★**▲ 379%**](https://www.amazon.co.uk/dp/B0GCNTLF41) [![DIVCHI 100PCS Soft Plastic Mini Play Balls Multi Vibrant Colors - durable No Sharp Edges Non Toxic Phthalate & BPA Free - Use in Kids or Toddler Ball Pit (100PCS)](https://m.media-amazon.com/images/I/51L2x4rsNhL.jpg)**DIVCHI 100PCS Soft Plastic Mini Play Balls Multi Vibrant Colors - durable No Sharp Edges Non Toxic Phthalate & BPA Free - Use in Kids or Toddler Ball Pit (100PCS)**DIVCHI**£7.90**4.5★**▲ 359%**](https://www.amazon.co.uk/dp/B082FQB95H)

**~~View all trending →~~**

## **What buyers say about polystyrene balls**

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

### **What buyers love **

**Advertised Vs Actual Product**23%

*“As Described”*

**Quality-Overall**22%

*“Good quality and arrived quickly”*

**Value For Money**12%

*“The amount is good”*

**Color**7%

*“Colourful”*

**Ease Of Use**6%

*“Easy to use”*

**Size-Overall**6%

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

**Fun/Entertainment Experience**6%

*“Kids have so much fun playing with these”*

**Ease Of Cleaning**3%

*“Easy to clean and keeps shape”*

**Maintenance And Repair**2%

*“Good value for repairs”*

**Material Quality**2%

*“good crafting material”*

### **What buyers complain about **

**Size-Overall**27%

*“Tiny bag”*

**Advertised Vs Actual Product**16%

*“False advertising”*

**Value For Money**15%

*“Not worth the price”*

**Quality-Overall**7%

*“Poor quality”*

**Smell**4%

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

**Flatness**4%

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

**Hard Feel**4%

*“Too soft”*

**Leak-Proof**3%

*“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 Experience**3%

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

**Functionality-Overall**3%

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

### **Top return reasons **

**Size-Overall**71%

**Quality-Overall**6%

**Advertised Vs Actual Product**6%

**Color**5%

**Value For Money**2%

**Material Quality**2%

**Soft Feel**1%

**Product Condition**1%

**Adhesion/Stickiness**1%

**Hard Feel**1%

## **Common questions**

<dl>

<dt>**Is polystyrene balls profitable to sell on Amazon United Kingdom?**</dt><dd>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).</dd>

<dt>**How competitive is the polystyrene balls niche?**</dt><dd>29 brands and 43 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 54% of demand.</dd>

<dt>**What do buyers complain about in polystyrene balls?**</dt><dd>Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Value For Money. The return rate is 0.4%.</dd>

<dt>**When does demand for polystyrene balls peak?**</dt><dd>Demand peaks in Oct–Nov–Dec; the busiest month runs 3.8× the quietest.</dd>

<dt>**What does it cost to enter the polystyrene balls niche?**</dt><dd>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.</dd>

</dl>

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