pen needles 31g 6mm
Worth a lookShows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Conversion
Incredible14.2%search→purchase rate — share of searches ending in a sale
Price range
Great$8.60–$45.39cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$15.55avg listing price — sweet spot $15–$100
Growth
Good+58.3%90-day search growth — must beat 0% to launch
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Review moat
Good929.29avg incumbent reviews — the moat a new listing must climb
Brand share
Good71%top-5 brand share — brands hold most of the demand
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$33K$33K/yr · 15K searches
According to Flapen's Amazon United States niche tracking, pen needles 31g 6mm is a $33K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 71% of demand. Verdict: Worth a look — 61/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
pen needles 31g 6mm market data
- Units sold / yr
- 3K–3K
- avg 100–250/product
- Revenue / yr
- $39K–$47K
- units × avg price
- Conversion rate
- 14.2%
- Avg BSR
- #384
- Page quality
- 0%
- Prime
- 92%
- Sponsored
- 50%
- Out of stock
- 23.1%
- Avg brand age
- 40 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.Brands
23 rising
Sellers
59
Top-5 brand share
71%
Top 20: 98%
Top-5 click share
44%
Top 20: 88%
Open market
24%
- GLUCO-CARE36%
- ONE-CARE13%
- CARELIVING11%
- Medt8%
- TRUEplus5%
- Easy Touch4%
Top pen needles 31g 6mm search terms
- pen needles 31g 6mm9K/yr
- insulin pen needles 6 mm3K/yr
- 6mm pen needles3K/yr
Top pen needles 31g 6mm 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
CareLiving Insulin Pen Needle 31G 6 mm (1/4) 100 Count Universal Fit Compatible with Most Pen Injector Device Ultra-Thin for Comfortable Insulin Injection
CARELIVING$9.704.7★188 rev
GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
GLUCO-CARE$11.744.5★19 rev
GLUCO-CARE Pen Tips 31G x 6mm (1/4) Universal Twist-On Connection Thin Tip Design 100/bx Comfort
GLUCO-CARE$9.264.6★102 rev
ONE-CARE Pen Tips 31G x 6 mm (1/4) Thin-Wall Channel Design Universal Twist-On Fit Compatible 100 Count
ONE-CARE$9.434.8★637 rev
GLUCO-CARE Plus Pen Tip 32G x 6mm Universal Fit 100/bx Extra Thin-Wall Technology for Optimal Flow
GLUCO-CARE$10.784.6★175 rev
Newest
by launch date
31G 6mm (1/4) Needle Individually Packaged 100 Count
Maydeyy$10.6712 rev
Pen Tips 33G x 6mm Universal Fit Comfortable Design 100 Count Pen Tip 33G 6mm
Pro Comfort$10.257 rev
31G 1/4 Inch/6mm Pen Tips Pack of 200 Thin-Wall Channel Design Individually Wrapped
Pegmapri$25.9719 rev
Pen Tips - 32 6mm Universal Fit Individually Sealed 100 Count
GlucoSwift$11.319 rev
GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
GLUCO-CARE$11.7419 rev
Trending
90-day click momentumPen Tips - 32 6mm Universal Fit Individually Sealed 100 Count
GlucoSwift$11.314.8★
GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
GLUCO-CARE$11.744.5★
31G 1/4 Inch/6mm Pen Tips Pack of 200 Thin-Wall Channel Design Individually Wrapped
Pegmapri$25.974.5★
31G 6mm (1/4) Needle Individually Packaged 100 Count
Maydeyy$10.674.9★
Pen Tips 33G x 6mm Universal Fit Comfortable Design 100 Count Pen Tip 33G 6mm
Pro Comfort$10.253.9★
What buyers say about pen needles 31g 6mm
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent price”
“They seem well made”
“easy to store”
“They fit securely”
“As Advertised”
“No discomfort”
“These get the job done”
“which is a huge plus since I dont have to worry about compatibility issues”
“Nice sharp pen tips that fit my pen perfectly”
“They are individually sealed”
What buyers complain about
“I didnt realize they were so short”
“Very cheaply made”
“4mm is somewhat too thick”
“Welp, they hurt ya girl”
“price has increased unfortunately”
“Also these needles don't seem to be quite as sharp”
“do not work for me”
“Bend easily”
“I hardly feel them during use”
“easily bendable”
Top return reasons
Common questions
- Is pen needles 31g 6mm profitable to sell on Amazon United States?
- The niche generates $33K/yr across 38 tracked products. 6 of 11 products launched in the last 360 days are still selling. 90-day search growth is +58.3%. Flapen's verdict: Worth a look (61/100).
- How competitive is the pen needles 31g 6mm niche?
- 23 brands and 59 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in pen needles 31g 6mm?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 0.2%.
- What does it cost to enter the pen needles 31g 6mm niche?
- Listings span $8.60–$45.39; the average listing price is $15.55 (sweet spot $15–$100). The average incumbent carries 929 reviews — the moat a new listing must climb.