Pen Needles 31g 5mm
MaybeAn estimated 0.1% of orders come back. But the products selling today already average 4.7★, so Pen Needles 31g 5mm is a Maybe.
- Flapen Score
- 55 / 100Top 24% of 14,768 Health & Household niches · +6 vs the category median of 4955
- Market size
- $186K/yr67K searches / yr
- 90-day growth
- +6.2%search demand this quarter
- Competition
- 57%top-5 click share · 12 brands · 16 sellers
Flapen Score
Pen Needles 31g 5mm against its category
The dotted line is the Health & Household average. Past it, Pen Needles 31g 5mm is stronger. Inside it, weaker.
Market
The Pen Needles 31g 5mm market on Amazon at a glance
Shoppers on Amazon United States searched for Pen Needles 31g 5mm 67K times last year and spent an estimated $186K. The top 5 brands take 76% of clicks. Demand peaks in May. Flapen scores it 55 out of 100, a Maybe.
01 · Demand
An estimated 15.7% of those searches ended in a purchase.
Shoppers searched for this 67K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 15.7% of those searches ended in a purchase. Searches in the last 90 days moved +6.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $186K a year.
- Searches, last 12 months
- 67K
- Growth, 90 days vs prior 90
- +6.2%
- Conversion, latest week
- 15.7%
- Market size, estimated
- $186Ka year
- Peak month
- May1.7× the quietest month
- Top search term
- pen needles 31g 5mm27K searches a year
02 · Price
A sale here is worth $17.64.
Listings sell for $17.64 on average, from $8.60 to $50.25. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 250 to 500 of them. At $17.64 that is $4K to $9K a year per listing.
- Average price
- $17.64inside the $15 to $100 sweet spot
- Price range
- $8.60–$50.25
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 10K–13K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $4K–$9K
- Returns
- 0.1%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
62% of listings pay for placement with sponsored ads. 90% ship with Prime. On an average day, 13.0% of listings are out of stock. The average listing ranks #447 within Diabetes Care. It carries 946 reviews at 4.67 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 62%
- Prime listings
- 90%
- Out of stock, average day
- 13.0%
- Average rank
- #447in Diabetes Care
- Average rating
- 4.67 starsAmazon United States average 4.42 stars
- Average reviews
- 946per listing
- Listings tracked
- 21
04 · Newcomers
6 of last year's 11 launches cleared the first-year sales bar.
11 products launched here in the last 12 months. 6 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 58 months on average, so the names here are settling in.
- Launched, last 12 months
- 11
- Successful launches
- 6Amazon's first-year sales bar
- Average brand age
- 58 months
Products
Top Pen Needles 31g 5mm products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 10, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Medt Fine Insulin Pen Needles 31G 5mm - Ultra-Fine Diabetic Pen Needles Designed for Comfort Universal Fit for Most Pen-Style Devices Sterile Single-Use Pen Tips 100 Count (Pack of 1)
- Price
- $8.61
- Rating
- 4.8/5
- Reviews
- 5,065
- Age
- 1y ago

GLUCO-CARE Pen Tips 31G x 5mm Universal Fit and Twist-On Design Thin Wall Compatible with Most Pen Devices 100 Pieces per Box
- Price
- $10.30
- Rating
- 4.7/5
- Reviews
- 292
- Age
- 1y ago

31G 5mm Pen Tips Universal Fit Easy to Use 100CT Comfortable Design
- Price
- $12.23
- Rating
- 4.6/5
- Reviews
- 46
- Age
- 2mo ago

Sensifine Pen Tips 31G x 5mm Box of 100 Universal Compatibility with most Pen Devices
- Price
- $16.00
- Rating
- 4.9/5
- Reviews
- 45
- Age
- 5mo ago

Medt - Fine Insulin Pen Needles (31G 5mm) - Diabetic Needles for Insulin Injections Ultra Fine Compatible with Most Diabetes Pens - 100 Ct Pack of 2
- Price
- $15.96
- Rating
- 4.8/5
- Reviews
- 5,065
- Age
- 7y ago
Trending
estimated 90-day click momentum
Pen Tips 31Gx5mm Box of 200 Count Universal Design Extra Thin Single-Use
- Price
- $26.47
- Rating
- 4.8/5
- Reviews
- 13
- Age
- 2mo ago

31G 5mm Pen Tips Universal Fit Easy to Use 100CT Comfortable Design
- Price
- $12.23
- Rating
- 4.6/5
- Reviews
- 46
- Age
- 2mo ago

31G x 5mm(3/16) Pen Tips Universal Fit SterileUltra-Thin Wall Technology. Comfortable and Precise100 Count
- Price
- $10.07
- Rating
- 4.8/5
- Reviews
- 25
- Age
- 4mo ago

Pen Tips 31G x 4mm(5/32) Universal Fit SterileUltra-Thin Wall Technology. Comfortable and Precise100 Count
- Price
- $10.41
- Rating
- 4.6/5
- Reviews
- 31
- Age
- 4mo ago

Sensifine Pen Tips 31G x 5mm Box of 100 Universal Compatibility with most Pen Devices
- Price
- $16.00
- Rating
- 4.9/5
- Reviews
- 45
- Age
- 5mo ago
Newest
by launch date
31G 5mm Pen Tips Universal Fit Easy to Use 100CT Comfortable Design
- Price
- $12.23
- Rating
- 4.6/5
- Reviews
- 46
- Age
- 2mo ago

Pen Tips 31Gx5mm Box of 200 Count Universal Design Extra Thin Single-Use
- Price
- $26.47
- Rating
- 4.8/5
- Reviews
- 13
- Age
- 2mo ago

BD Ultra-Fine Mini Pen Tips 31G x 5mm 90 Count
- Price
- $50.25
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

31G x 5mm(3/16) Pen Tips Universal Fit SterileUltra-Thin Wall Technology. Comfortable and Precise100 Count
- Price
- $10.07
- Rating
- 4.8/5
- Reviews
- 25
- Age
- 4mo ago

Pen Tips 31G x 4mm(5/32) Universal Fit SterileUltra-Thin Wall Technology. Comfortable and Precise100 Count
- Price
- $10.41
- Rating
- 4.6/5
- Reviews
- 31
- Age
- 4mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 57% of clicks. Leaders hold, but buyers still shop past them.
Brands
12 rising
Sellers
16
Est. top-5 brand share
76%
Top 20: 97%
Est. top-5 click share
57%
Top 20: 100%
Open market
18%
- Medt35%
- GLUCO-CARE16%
- Sensifine10%
- Pro Comfort9%
- Pharmacy Choice7%
- Aicare5%
Demand
Pen Needles 31g 5mm search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May · busiest ÷ quietest = 1.7×
Search terms
Top Pen Needles 31g 5mm search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- pen needles 31g 5mm27K/yr
- insulin pen needles 31g 5mm11K/yr
- 31g 5mm pen needles5K/yr
- ultra fine pen needles 31g 5mm4K/yr
- needles for insulin pens 5mm3K/yr
- embecta pen needles 31g 5mm4K/yr
- 5mm pen needles3K/yr
- bd ultra fine mini pen needles 5mm x 31g8K/yr
- bd uf mini pen needle 5mmx31g2K/yr
Reviews and returns
What reviews say buyers love and hate about Pen Needles 31g 5mm
We read the reviews and the return reasons for every product selling here.
“But got the wrong size”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Pen Needles 31g 5mm questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









