Best Selling Muji Pen 0.38: See Top Product Rankings by Sales Volume & Market Trends

July 2026
48 Products Tracked

Looking for the most popular muji pen 0.38 products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "muji pen 0.38." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B0017TMMLS currently leads the muji pen 0.38 market with 3K monthly sales, followed closely by B005HNZ5SW with 3K monthly sales and B08JY653PJ with 3K monthly sales. Meanwhile, ASIN B0058NN8NK stands out as the fastest-growing product, achieving an impressive 100.0% month-over-month sales growth. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales July 2026
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 12-Pack
1
B0017TMMLS
$15.05·
4.8
Units/sold3K
uniball 207 Retractable Gel Pens, Ultra Micro Point (0.38mm), Black, 12 Pack
2
B005HNZ5SW
$15.29·
4.7
Units/sold3K
Sharpie S-Gel Pens, Ultra Fine Point (0.38mm), Black Gel Ink, 4 Count
3
B08JY653PJ
$7.57·
4.6
Units/sold3K
🚀Fastest Growing
by MoM sales growth
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 5-Pack
#1
B0058NN8NK
$6.99·
4.8
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 5-Pack
Units/sold
2K100.0%
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 4-Pack
#2
B0058NN934
$7.70·
4.8
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 4-Pack
Units/sold
1K25.0%

Top Selling Muji Pen 0.38

As of July 2026, we analyzed 48 tracked products in Amazon's "muji pen 0.38" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 1,000 and 3,000 monthly sales. B0017TMMLS leads the muji pen 0.38 market with an estimated 3,000 monthly sales, up 2.0% from the previous month.

48Products Tracked
1,800Top 10 Avg. Sales
$11.03Top 10 Avg. Price
4.7Top 10 Avg. Rating
🏆
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 12-Pack
#1
B0017TMMLS

Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 12-Pack

3,000
▲ 2.0%
Units Sold/mo
$15.05
Price
4.8
Rating
13.8K
Reviews
2
uniball 207 Retractable Gel Pens, Ultra Micro Point (0.38mm), Black, 12 Pack
B005HNZ5SW
$15.29
4.7 (27.6K)
uniball 207 Retractable Gel Pens, Ultra Micro Point (0.38mm), Black, 12 Pack
3,000 Units Sold/mo▲ 2.8%
3
Sharpie S-Gel Pens, Ultra Fine Point (0.38mm), Black Gel Ink, 4 Count
B08JY653PJ
$7.57
4.6 (16.9K)
Sharpie S-Gel Pens, Ultra Fine Point (0.38mm), Black Gel Ink, 4 Count
3,000 Units Sold/mo
4
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 5-Pack
B0058NN8NK
$6.99
4.8 (6.2K)
Pilot G2 Premium Refillable and Retractable Rolling Ball Gel Pens, Ultra Fine Point, Gel Ink Pens, 0.38mm, Black Ink, 5-Pack
2,000 Units Sold/mo▲ 100.0%
5
Chinco 12 Pieces 0.35 mm Black Gel Ink Pen Japanese Stationery Extra Fine Chinese Ballpoint Pen for Office School Korean Stationery Supply
B07S81PTLM
$6.49
4.6 (5.9K)
Chinco 12 Pieces 0.35 mm Black Gel Ink Pen Japanese Stationery Extra Fine Chinese Ballpoint Pen for Office School Korean Stationery Supply
2,000 Units Sold/mo▲ 4.0%
10
Japanese Style Black Gel Ink Pens, 0.35mm Extra Fine Point, No Smudge Quick Drying, Japanese Ink Pen for Journal Planners, Thin Notebook Paper, Office School Supplies, 12 Pack, Writing Drawing
B0D2ZLVPZ7
$8.99
4.5 (413)
Japanese Style Black Gel Ink Pens, 0.35mm Extra Fine Point, No Smudge Quick Drying, Japanese Ink Pen for Journal Planners, Thin Notebook Paper, Office School Supplies, 12 Pack, Writing Drawing
1,000 Units Sold/mo
View All 48 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the muji pen 0.38 price landscape, we segmented all 48 tracked listings in Amazon's live "muji pen 0.38" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $0.00 ~ $10.00 band is the category's best muji pen 0.38 price zone, absorbing 58% of the assortment (169 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the muji pen 0.38 category.

Top 3 Price Tiers

$0.00 ~ $10.00 is the most competitive price tier, containing 58% of tracked products.

Sweet Spot
$0.00 ~ $10.00
Tier 1
58%
169 products

Top products in this price tier

#1
B0017TMMLS
$15.05
3k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
33%
96 products
$20.00 ~ $50.00
Tier 3
9%
25 products
$50.00 ~ $100.00
1%
Unlock to view all price tier distributions and their ASIN sales contributions

"Muji pen 0.38" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "muji pen 0.38" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-06-21 to 2026-06-27, the Amazon USweekly search volume for "muji pen 0.38" was approximately 138 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #1,237,494, climbing 952,395 positions from the previous week. Additionally, the top 3 products for this keyword capture 55.6% of the total click share and 28.6% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

muji pen 0.38

ASINSIGHT
Search Frequency Rank
1,237,494
952,395
Search Volume
138
102.9%
Top 3 Click Share
55.6%
Top 3 Conv. Share
28.6%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
138
View full trends for the past 3 years
JunJulAugSepOctNovDecJanFebMarAprMayJun

One Amazon dataset. Two ways to use it.

Every number in this muji pen 0.38 report comes from the Amazon market data ASINSIGHT tracks. Pick how you want to work with it.

Web AppExplore & Monitor

Explore the full data

Browse the complete, structured picture in a ready-made interface — and keep tracking it as the market moves.

  • Organic vs. ad traffic shifts per product
  • Hourly rank and search-volume tracking
  • Competitor ASINs and historical trends
Explore the full data

Starts with a free ASINSIGHT account

MCPAsk & AnalyzeFree Beta

Analyze the data your way

Connect the same data to ChatGPT, Claude or Cursor, then combine any dimensions to answer your own questions.

  • Combine product, keyword, sales & ranking data freely
  • Follow up in your own words, no fixed reports
  • Works in ChatGPT, Claude & Cursor
Analyze with ASINSIGHT MCP

20,000 credits/mo free, no credit card

ASINSIGHT logo

Empower Amazon Sellers With Keyword Expertise Boost Product Keyword Rankings.

Copyright © 2026 ASINSIGHT All rights reserved.

|