---
title: "Uniball Zento Signature — $11K/yr Amazon SG Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/sg/office-products/uniball-zento-signature"
last_updated: "2026-08-08T06:59:56.363Z"
locale: en
meta:
  description: "Niche score 34/100 · $11K/yr market · 13K searches/yr · $45.44 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 34/100 · $11K/yr market · 13K searches/yr · $45.44 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Uniball Zento Signature — $11K/yr Amazon SG Niche (2026) - Flapen"
---

# **uniball zento signature**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 3Growth 9Conversion 25Competition 20Returns 100Price range 90Avg price 95Brand share 0Review moat 87Quality gap 35

**Returns**

**Incredible****0.0%**

return rate — above 5% kills the launch gate

**Avg price**

**Incredible****$45.44**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$9.11–$97.22**

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

**Review moat**

**Great****259.91**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Bad****2.0%**

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

**Competition**

**Bad****76%**

top-5 click share — a locked-up shelf

**Growth**

**Bad****-33.0%**

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

**Market size**

**Bad****$11K**

$11K/yr · 13K searches

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

According to Flapen's Amazon Singapore niche tracking, uniball zento signature is a $11K/yr Amazon Singapore market (13K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.

Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **uniball zento signature market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**0–100**</dd><dd>avg 0–100/product</dd>

<dt>**Revenue / yr**</dt><dd>**$0–$5K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**2.0%**</dd>

<dt>**Avg BSR**</dt><dd>**#64**</dd>

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

<dt>**Prime**</dt><dd>**82%**</dd>

<dt>**Sponsored**</dt><dd>**0%**</dd>

<dt>**Out of stock**</dt><dd>**0.0%**</dd>

<dt>**Avg brand age**</dt><dd>**106 months**</dd>

<dt>**Avg seller age**</dt><dd>**0 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**3 **—flat

**Sellers**

**11**

**Top-5 brand share**

**100%**

Top 20: 100%

**Top-5 click share**

**76%**

Top 20: 100%

**Open market**

**0%**

- 三菱鉛筆76% - Uni-Ball15% - Uniball ZENTO9% - Open — no brand owns it (0%)

## **Demand**

Weekly Amazon search volume, last 46 weeks — -33.0% search growth over the last 90 days.

500300Spike '25Black Friday '25Holiday '25Spike '26Sep '25Oct '25Dec '25Feb '26Mar '26May '26Jun '26

[**Open Trend **](https://flapen.com/research/sg/office-products/uniball-zento-signature/trend)

## **Top uniball zento signature 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%$1K20%$2K30%$3K40%$5K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

All 11 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Fine 0.5mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Metallic Black UBZH05M.24](https://m.media-amazon.com/images/I/310AmdEteuL.jpg)**三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Fine 0.5mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Metallic Black UBZH05M.24**三菱鉛筆**$84.34**4.6★91 rev](https://www.amazon.sg/dp/B0DWZVLT6T) [2![uniball zento Uniball Zento Signature Model Champagne Gold ubzh 07 25](https://m.media-amazon.com/images/I/31f+hQ9s8CL.jpg)**uniball zento Uniball Zento Signature Model Champagne Gold ubzh 07 25**三菱鉛筆**$91.41**4.4★38 rev](https://www.amazon.sg/dp/B0GC67B1T1) [3![Ballpoint Pen Uni-Ball One ZENTO 0.5mm/Flow Hematite](https://m.media-amazon.com/images/I/21NdvejoYBL.jpg)**Ballpoint Pen Uni-Ball One ZENTO 0.5mm/Flow Hematite**三菱鉛筆**$20.65**4.4★371 rev](https://www.amazon.sg/dp/B0DX1HJWG1) [4![Uniball Zento Gel Ink Rollerball Pens 12 Black Medium Point Smooth Writing Pens Colored Japanese Pens Muted Colors](https://m.media-amazon.com/images/I/4172RS8eiAL.jpg)**Uniball Zento Gel Ink Rollerball Pens 12 Black Medium Point Smooth Writing Pens Colored Japanese Pens Muted Colors**Uni-Ball**$17.64**4.7★525 rev](https://www.amazon.sg/dp/B0D9CQJ93L) [5![三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Extra Fine 0.38mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Silver UBZH38.26](https://m.media-amazon.com/images/I/316GhQo+0WL.jpg)**三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Extra Fine 0.38mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Silver UBZH38.26**三菱鉛筆**$53.27**4.7★80 rev](https://www.amazon.sg/dp/B0DX1LHVL4)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![uniball zento Uniball Zento Signature Model Champagne Gold ubzh 07 25](https://m.media-amazon.com/images/I/31f+hQ9s8CL.jpg)**uniball zento Uniball Zento Signature Model Champagne Gold ubzh 07 25**三菱鉛筆**$91.41**38 rev6mo ago](https://www.amazon.sg/dp/B0GC67B1T1) [![Mitsubishi Pencil UBNZSC05.4P Uniball ZENTO Standard 0.5 4 Pack](https://m.media-amazon.com/images/I/41h4LEjbrlL.jpg)**Mitsubishi Pencil UBNZSC05.4P Uniball ZENTO Standard 0.5 4 Pack**三菱鉛筆**$11.39**61 rev1y ago](https://www.amazon.sg/dp/B0F2HGXPPH) [![Ballpoint Pen Uni-Ball One ZENTO 0.5mm/Flow Hematite](https://m.media-amazon.com/images/I/21NdvejoYBL.jpg)**Ballpoint Pen Uni-Ball One ZENTO 0.5mm/Flow Hematite**三菱鉛筆**$20.65**371 rev1y ago](https://www.amazon.sg/dp/B0DX1HJWG1) [![Mitsubishi Pencil UBNZS05.3C Uniball ZENTO Basic 0.5 Water-Based Ballpoint Pen Set of 3 Black Red Blue](https://m.media-amazon.com/images/I/41qsN50iPCL.jpg)**Mitsubishi Pencil UBNZS05.3C Uniball ZENTO Basic 0.5 Water-Based Ballpoint Pen Set of 3 Black Red Blue**三菱鉛筆**$9.83**119 rev1y ago](https://www.amazon.sg/dp/B0F2HDDDJD) [![三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Fine 0.5mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Metallic Black UBZH05M.24](https://m.media-amazon.com/images/I/310AmdEteuL.jpg)**三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Fine 0.5mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Metallic Black UBZH05M.24**三菱鉛筆**$84.34**91 rev1y ago](https://www.amazon.sg/dp/B0DWZVLT6T)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Fine 0.5mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Metallic Black UBZH05M.24](https://m.media-amazon.com/images/I/310AmdEteuL.jpg)**三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Fine 0.5mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Metallic Black UBZH05M.24**三菱鉛筆**$84.34**4.6★**▲ 271%**](https://www.amazon.sg/dp/B0DWZVLT6T) [![uniball zento Uniball Zento Signature Model Champagne Gold ubzh 07 25](https://m.media-amazon.com/images/I/31f+hQ9s8CL.jpg)**uniball zento Uniball Zento Signature Model Champagne Gold ubzh 07 25**三菱鉛筆**$91.41**4.4★**▲ 251%**](https://www.amazon.sg/dp/B0GC67B1T1) [![三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Extra Fine 0.38mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Silver UBZH38.26](https://m.media-amazon.com/images/I/316GhQo+0WL.jpg)**三菱鉛筆 uniball ZENTO Signature Model Rollerball Pen Metal Design with Magnetic Cap Extra Fine 0.38mm Water-Based Black Ink Ultra-Smooth with Reduced Friction Silver UBZH38.26**三菱鉛筆**$53.27**4.7★**▲ 106%**](https://www.amazon.sg/dp/B0DX1LHVL4) [![Mitsubishi Pencil UBNZSC05.4P Uniball ZENTO Standard 0.5 4 Pack](https://m.media-amazon.com/images/I/41h4LEjbrlL.jpg)**Mitsubishi Pencil UBNZSC05.4P Uniball ZENTO Standard 0.5 4 Pack**三菱鉛筆**$11.39**4.6★**▲ 35%**](https://www.amazon.sg/dp/B0F2HGXPPH) [![uniball ZENTO UBNZF05 Zent Flow Model 0.02 inch (0.5 mm)](https://m.media-amazon.com/images/I/21sNrSpgmlL.jpg)**uniball ZENTO UBNZF05 Zent Flow Model 0.02 inch (0.5 mm)**三菱鉛筆**$13.74**4.4★**— 10%**](https://www.amazon.sg/dp/B0DWZVRJG5)

**~~View all trending →~~**

## **Common questions**

<dl>

<dt>**Is uniball zento signature profitable to sell on Amazon Singapore?**</dt><dd>The niche generates $11K/yr across 11 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -33.0%. Flapen's verdict: Skip it (34/100).</dd>

<dt>**How competitive is the uniball zento signature niche?**</dt><dd>3 brands and 11 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 100% of demand.</dd>

<dt>**What does it cost to enter the uniball zento signature niche?**</dt><dd>Listings span $9.11–$97.22; the average listing price is $45.44 (sweet spot $15–$100). The average incumbent carries 260 reviews — the moat a new listing must climb.</dd>

</dl>

## **Related niches in Office Products**

- 34 [**pencil**](https://flapen.com/research/sg/office-products/pencil)$0/yr+8.6%**Skip it**- 34 [**cinnamoroll pencil case**](https://flapen.com/research/sg/office-products/cinnamoroll-pencil-case)$0/yr+25.7%**Skip it**- 34 [**colour pencils**](https://flapen.com/research/sg/office-products/colour-pencils)$1K/yr+8.0%**Skip it**- 34 [**whiteboard**](https://flapen.com/research/sg/office-products/whiteboard)$8K/yr-15.5%**Skip it**- 34 [**post it**](https://flapen.com/research/sg/office-products/post-it)$8K/yr-9.8%**Skip it**- 33 [**sarasa**](https://flapen.com/research/sg/office-products/sarasa)$2K/yr+22.4%**Skip it**[**All Office Products niches **](https://flapen.com/research/sg/office-products)