fiberglass pen
Skip itA small market ($65K/yr) — this niche doesn't clear our bar today.
Conversion
Incredible14.8%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Review moat
Great324.27avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$11.18avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Price range
Okay$7.01–$18.29cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-4.0%90-day search growth — must beat 0% to launch
Competition
Bad78%top-5 click share — a locked-up shelf
Market size
Bad$65K$65K/yr · 39K searches
According to Flapen's Amazon United States niche tracking, fiberglass pen is a $65K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 42/100.
Data updated Aug 6, 2026 · scored weekly · How we score niches
fiberglass pen market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $45K–$56K
- units × avg price
- Conversion rate
- 14.8%
- Avg BSR
- #1,085
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 73%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 183 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
15
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
10%
- TAURISH39%
- RAHISH TOOLS20%
- Excelta12%
- Dura-Gold10%
- Pixiss5%
- SE4%
- Open — no brand owns it (3 brands, 10%)
Demand
Weekly Amazon search volume, last 26 weeks — -4.0% search growth over the last 90 days.Top fiberglass pen search terms
- fiberglass pen19K/yr
- fiberglass scratch pen7K/yr
- fiberglass brush6K/yr
- fiberglass pencil7K/yr
Top fiberglass pen 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 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Fiberglass Scratch Brush Pens 3 Pack for Jewelry Watch & Coin Cleaning
TAURISH$8.884.6★237 rev
Fiberglass Tip Scratch Brush Pens Fine Tip PCB Metal & Jewelry 3 Pcs
RAHISH TOOLS$8.784.6★41 rev
Dura-Gold Fiberglass Spot Scratch Brush Pen Tool Pack of 3 - Clean Sand Scuff Surfaces Remove Rust & Corrosion Prep Sanding Auto Paint Scratches for Painting - Polish Metals Cleaning Electronics
Dura-Gold$10.034.2★105 rev
Excelta 267 Fiberglass Retractable Scratch Pen Brush Refillable Precision
Excelta$13.204.5★177 rev
Fiberglass Pen Scratch Brush Set - Jewelry Cleaning Brush with Steel Brass Nylon Fiberglass Tips for Corrosion Remover and Rust Jewelry Electrical Circuit Boards and Auto Body Work
Pixiss$11.984.5★1,080 rev
Newest
by launch dateFiberglass Tip Scratch Brush Pens Fine Tip PCB Metal & Jewelry 3 Pcs
RAHISH TOOLS$8.7841 rev
4 Piece Fiberglass Scratch Brush Pen Set with Steel Brass Nylon Tips
TAURISH$9.7785 rev
Fiberglass Scratch Brush Pens 3 Pack for Jewelry Watch & Coin Cleaning
TAURISH$8.88237 rev
Dura-Gold Fiberglass Spot Scratch Brush Pen Tool Pack of 3 - Clean Sand Scuff Surfaces Remove Rust & Corrosion Prep Sanding Auto Paint Scratches for Painting - Polish Metals Cleaning Electronics
Dura-Gold$10.03105 rev
Rosenthal Collection PrecisionGlide Fiberglass Scratch Brush Pen Detail Jewelry Coin & Watch Cleaner - 3 Pack
Rosenthal Collection$9.76232 rev
Trending
90-day click momentumFiberglass Tip Scratch Brush Pens Fine Tip PCB Metal & Jewelry 3 Pcs
RAHISH TOOLS$8.784.6★
Excelta 264 Fiberglass Scratch Brush Long Thin 5.25 Plastic Handle
Excelta$18.294.9★
Dura-Gold Fiberglass Spot Scratch Brush Pen Tool Pack of 3 - Clean Sand Scuff Surfaces Remove Rust & Corrosion Prep Sanding Auto Paint Scratches for Painting - Polish Metals Cleaning Electronics
Dura-Gold$10.034.2★
4 Piece Fiberglass Scratch Brush Pen Set with Steel Brass Nylon Tips
TAURISH$9.774.4★
Fiberglass Scratch Brush Pens 3 Pack for Jewelry Watch & Coin Cleaning
TAURISH$8.884.6★
What buyers say about fiberglass pen
What buyers praise and complain about, mined from review topics.What buyers love
“Works well use it to clean motor commutators”
“The build quality is solid”
“Good Value”
“Does the job”
“easy to use”
“Great rust and paint speck remover”
“Surprisingly good scratch pens”
“Work great”
“it works surprisingly well for just being fiberglass brush material”
“Seem pretty durable”
What buyers complain about
“if you don't take care of them they will break easily”
“the product need better materials”
“Made stratched worse”
“break when bent”
“I don't recommend using these for rust removal because it fouls the tip”
“Contacts were black after all these years”
“The brush isn't secured properly”
“Did not remove paint corrosion”
“not exceptional”
“I was a little surprised there wasn't more length there”
Top return reasons
Common questions
- Is fiberglass pen profitable to sell on Amazon United States?
- The niche generates $65K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -4.0%. Flapen's verdict: Skip it (42/100).
- How competitive is the fiberglass pen niche?
- 9 brands and 15 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in fiberglass pen?
- Top complaints mined from reviews: Durability, Material Quality, Functionality-Overall. The return rate is 0.8%.
- What does it cost to enter the fiberglass pen niche?
- Listings span $7.01–$18.29; the average listing price is $11.18 (sweet spot $15–$100). The average incumbent carries 324 reviews — the moat a new listing must climb.