---
title: "Muji Pens — £68K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/stationery-office-supplies/muji-pens"
last_updated: "2026-07-31T20:27:52.728Z"
locale: en
meta:
description: "Niche score 36/100 · £68K/yr market · 246K searches/yr · £10.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · £68K/yr market · 246K searches/yr · £10.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Muji Pens — £68K/yr Amazon UK Niche (2026) - Flapen"
---
# **muji pens**
**Skip it**
Prices mostly outside the sweet spot ($5.02–$14.14) — this niche doesn't clear our bar today.
Market size 17Growth 22Conversion 35Competition 35Returns 98Price range 0Avg price 33Brand share 18Review moat 66Quality gap 53
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****854.88**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.8%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****£10.01**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-5.8%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****£68K**
£68K/yr · 246K searches
**Price range**
**Bad****£5.02–£14.14**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, muji pens is a £68K/yr Amazon United Kingdom market (246K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Apr–Sep. Verdict: Skip it — 36/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **muji pens market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **£80K–£100K**
- units × avg price
- **Conversion rate**
- **2.8%**
- **Avg BSR**
- **#303**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **81%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **166 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▲rising
**Sellers**
**63**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**3%**
- MUJI55% - Muji12% - ABEIER10% - Hometric8% - Shezi & co8% - Generic5% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.8% search growth over the last 90 days.
30K20KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, Sep · busiest ÷ quietest = 4.3×
[**Open Trend **](https://flapen.com/research/uk/stationery-office-supplies/muji-pens/trend)
## **Top muji pens search terms**
- **muji pens**104K/yr-14.3%5.3% conv. - **muji**90K/yr+7.0%0.9% conv. - **muji pens 0.5**22K/yr-4.7%7.1% conv. - **muji pen**17K/yr-16.8%3.9% conv. - **muji stationery**5K/yr-6.6%0.7% conv. - **muji gel pens**3K/yr+1.1%3.5% conv. - **muji**5K/yr-1.1%0.0% conv. [**All search terms **](https://flapen.com/research/uk/stationery-office-supplies/muji-pens/search-terms)
## **Top muji pens 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%10%£7K20%£14K30%£20K40%£27K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Muji Smooth Gel Ink Ballpoint Pen Knock Type 10-Pieces Set 0.5 mm Nib Size Black**MUJI**£14.14**4.6★1,450 rev](https://www.amazon.co.uk/dp/B08P5J6CHH) [2**MUJI 0.38mm Black Gel Ink Pen (Pack of 5)**Muji**£10.66**4.6★781 rev](https://www.amazon.co.uk/dp/B00G7XOP14) [3**ABEIER Premium 12 Gel Ink Pens Fine Point Pens Ballpoint Pen 0.5mm for Japanese Office Stationery Supply Pack for XSG**ABEIER**£7.72**4.6★2,345 rev](https://www.amazon.co.uk/dp/B08FBZV2W6) [4**MUJI Gel Ink Ballpoint Pens 0.38mm Set of 9 Pack (5 Black 2 Blue 2 Red)**MUJI**£13.40**4.5★1,278 rev](https://www.amazon.co.uk/dp/B08HK12L1B) [5**Muji Gel Ink Pen Black 0.5mm Pack of 3 (Japan Import)**MUJI**£9.12**4.6★2,937 rev](https://www.amazon.co.uk/dp/B07B6W5668)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Surcotto Gel Ink Pens 12pcs 0.5mm Black Ultra-Fast Drying for Writing Drawing and Outlining - Suitable for Students and Office Workers**Surcotto**£5.02**2,204 rev3y ago](https://www.amazon.co.uk/dp/B0C5GT9P56) [**Muji Gel Ink Ballpoint Pen Cap Type 10-Pieces Set 0.38 mm Nib Size Black**MUJI**£13.75**358 rev5y ago](https://www.amazon.co.uk/dp/B08P5JVZ1S) [**MUJI Gel Ink Ballpoint Pens 0.38mm Set of 9 Pack (5 Black 2 Blue 2 Red)**MUJI**£13.40**1,278 rev5y ago](https://www.amazon.co.uk/dp/B08HK12L1B) [**ABEIER 0.35 mm Black Gel Pen Extra-Fine Ballpoint Pen for Office Stationery Supply (12 Pieces)**ABEIER**£6.35**536 rev5y ago](https://www.amazon.co.uk/dp/B08HGQVL5T) [**ABEIER Premium 12 Gel Ink Pens Fine Point Pens Ballpoint Pen 0.5mm for Japanese Office Stationery Supply Pack for XSG**ABEIER**£7.72**2,345 rev5y ago](https://www.amazon.co.uk/dp/B08FBZV2W6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Shezi & co Muujiii Pens 0.38mm Black Gel Pen Pack of 10 | Smooth Writing Japanese Stationery | Fine Tip Ballpoint Pens for Students Office Handwriting Journaling & Notes (0.38mm Pack of 10)**Shezi & co**£9.32**4.3★**▲ 228%**](https://www.amazon.co.uk/dp/B0GGJJ2BMC) [**Muujiii Pens 0.5mm Black Gel Pen Pack of 10 | Smooth Writing Japanese Stationery | Fine Tip Ballpoint Pens for Students Office Handwriting Journaling & Notes | Smudge-Free Ink**Shezi & co**£10.78**3.8★**▲ 65%**](https://www.amazon.co.uk/dp/B0G2N22HKR) [**Muji Smooth Gel Ink Ballpoint Pen Knock Type 10-Pieces Set 0.5 mm Nib Size Black**MUJI**£14.14**4.6★**▲ 44%**](https://www.amazon.co.uk/dp/B08P5J6CHH) [**MUJI Gel Ink Ballpoint Pens 0.38mm Set of 9 Pack (5 Black 2 Blue 2 Red)**MUJI**£13.40**4.5★**▲ 20%**](https://www.amazon.co.uk/dp/B08HK12L1B) [**Muji Pens 0.38mm Black Gel Pen Pack of 5 | Smooth Writing Japanese Stationery | Fine Tip Ballpoint Pens for Students Office Handwriting Journaling & Notes | Smudge-Free Ink**Hometric**£8.03**4.4★**▲ 19%**](https://www.amazon.co.uk/dp/B0FXYFQNZT)
**~~View all trending →~~**
## **What buyers say about muji pens**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Writing Experience**22%
*“Beautiful writing”*
**Quality-Overall**17%
*“Brilliant Quality”*
**Pen/Pencil Quality**12%
*“Great pens”*
**Value For Money**9%
*“Really good vale at under £6 for 12”*
**Ease Of Use**8%
*“A pleasure to use”*
**Smudge Resistance**5%
*“They dont smudge”*
**Nib/Tip Quality**5%
*“The 0.38mm tip produces a very fine, precise line that is ideal for neat handwriting, detailed notes, and journaling”*
**Size-Overall**3%
*“Well used and a good size”*
**Soft Feel**3%
*“Smooth gel makes the difference”*
**Design-Overall**3%
*“Awesome refillable pen design”*
### **What buyers complain about **
**Durability**22%
*“one pen does not last long”*
**Quality-Overall**20%
*“A bit confused with all the good reviews”*
**Writing Experience**15%
*“Writing is not smooth”*
**Hard Feel**11%
*“Not very smooth”*
**Ink Leakage**7%
*“Bad Ink Flow”*
**Leak-Proof**4%
*“A few leaking in my bag”*
**Value For Money**4%
*“Zero value for money”*
**Paper Quality**3%
*“However, these pens are quite scratchy, i tried the pens on a few different papers and it wasnt any better on any of them”*
### **Top return reasons **
**Functionality-Overall**15%
**Ink Refill**13%
**Size-Overall**13%
**Writing Experience**10%
**Quality-Overall**10%
**Dry/Empty Ink**8%
**Advertised Vs Actual Product**7%
**Thin**4%
**Nib/Tip Quality**3%
**Certifications**3%
## **Common questions**
- **Is muji pens profitable to sell on Amazon United Kingdom?**
- The niche generates £68K/yr across 16 tracked products. 90-day search growth is -5.8%. Flapen's verdict: Skip it (36/100).
- **How competitive is the muji pens niche?**
- 7 brands and 63 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in muji pens?**
- Top complaints mined from reviews: Durability, Quality-Overall, Writing Experience. The return rate is 0.4%.
- **When does demand for muji pens peak?**
- Demand peaks in Apr–Sep; the busiest month runs 4.3× the quietest.
- **What does it cost to enter the muji pens niche?**
- Listings span £5.02–£14.14; the average listing price is £10.01 (sweet spot $15–$100). The average incumbent carries 855 reviews — the moat a new listing must climb.
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