ink cartridges fountain pen
Skip itPrices mostly outside the sweet spot ($0.86–$11.73) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Conversion
Great9.8%search→purchase rate — share of searches ending in a sale
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Review moat
Bad6,156.36avg incumbent reviews — the moat a new listing must climb
Avg price
Bad£4.63avg listing price — sweet spot $15–$100
Market size
Bad£49K£49K/yr · 109K searches
Growth
Bad-28.3%90-day search growth — must beat 0% to launch
Price range
Bad£0.86–£11.73cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, ink cartridges fountain pen is a £49K/yr Amazon United Kingdom market (109K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Dec. Verdict: Skip it — 41/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
ink cartridges fountain pen market data
- Units sold / yr
- 10K–13K
- avg 250–500/product
- Revenue / yr
- £46K–£58K
- units × avg price
- Conversion rate
- 9.8%
- Avg BSR
- #117
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 50%
- Out of stock
- 3.7%
- Avg brand age
- 60 months
- Avg seller age
- 179 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
61
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
53%
Top 20: 90%
Open market
13%
- PARKER46%
- Anker International13%
- Helix13%
- Online7%
- BOCIYER5%
- Scriveiner4%
- Open — no brand owns it (6 brands, 13%)
Demand & seasonality
Weekly Amazon search volume, last 90 weeks — -28.3% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 1.8×
Top ink cartridges fountain pen search terms
- fountain pen ink cartridges27K/yr
- ink cartridges fountain pen24K/yr
- parker ink cartridges13K/yr
- parker fountain pen refills13K/yr
- parker fountain pen ink cartridges7K/yr
- fountain pen cartridges4K/yr
- ink cartridges for fountain pens4K/yr
- black ink cartridges fountain pen6K/yr
- parker pen ink cartridges4K/yr
- pen ink cartridges3K/yr
Top ink cartridges fountain 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Parker Fountain Pen Ink Refill Cartridges | Long | Black QUINK Ink | 10 Count (Blister)
PARKER£3.924.7★19,829 rev
Oxford 219821 Helix Ink Cartridges - Black (Pack of 20)
Helix£3.174.5★816 rev
25 x Standard Sized Universal Black Fountain Pen Ink Cartridge Refills
Anker International£2.644.0★2,073 rev
Parker Fountain Pen Ink Refill Cartridges | Long | Washable Blue QUINK Ink | 10 Count (Blister)
PARKER£4.784.8★2,657 rev
Parker Fountain Pen Ink Refill Cartridges | Long | Washable Blue QUINK Ink | 5 Count
PARKER£2.884.7★19,829 rev
Newest
by launch date
60 Count Bociyer Fountain Pen Ink Refill Cartridges | Standard International Ink Cartridge | 2.6mm bore Diameter | Black Ink
BOCIYER£8.4117 rev
60 Count Bociyer Fountain Pen Ink Refill Cartridges |Ink Cartridge | 3.4mm bore Diameter | Black Ink
BOCIYER£8.3914 rev
AIBelire Fountain Pen Ink Cartridges- 2.6mm Bore Diameter- Black- 20pcs
AIBelire£4.1523 rev
30 pcs Pen Ink Cartridges Pen Ink Refills 3.4 mm Bore Diameter Refill Size Fits A Wide Range of Fountain Pens
KkvoGmle£3.5828 rev
Scriveiner Fountain Pen Ink Cartridges - Black - 20 Standard International Ink Cartridges Made in UK The Best Cartridge for Your Scriveiner Pen Refill Size Fits A Wide Range of Fountain Pens
Scriveiner£8.442,078 rev
Trending
90-day click momentum
Parker Fountain Pen Ink Refill Cartridges | Long | Black QUINK Ink | 5 Count (Blister)
PARKER£2.624.7★
Parker Fountain Pen Ink Refill Cartridges | Long | Blue-Black QUINK Ink | 5 Count (Blister)
PARKER£3.234.7★
Parker Fountain Pen Ink Refill Cartridges | Long | Washable Blue QUINK Ink | 5 Count
PARKER£2.884.7★
60 Count Bociyer Fountain Pen Ink Refill Cartridges |Ink Cartridge | 3.4mm bore Diameter | Black Ink
BOCIYER£8.394.4★
ONLINE Standard Ink cartridges Universal Fountain Pen Ink Compatible with All Common Standard Fountain pens Replacement cartridges for Fountain pens and rollerballs 6 Pieces Colour Purple
Online£0.874.0★
What buyers say about ink cartridges fountain pen
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality and value arrived quickly”
“Excellent refills”
“Does as advertised”
“Lovely color”
“Perfect fit”
“Good quality ink”
“Value for money”
“consistent on paper”
“Excellent scrivener ink and pens”
“Compatible with most fountain pens”
What buyers complain about
“A tight fit”
“it is difficult to see if they are compatible”
“Can't comment on the quality of the ink as I have no use for them”
“ink does take a lot longer to dry than another brand”
“be aware the cartridge necks on these are too long, dont get pierced or fit properly and will not remain attached to the pen, so they fall off in the pen barrel and leak everywhere”
“Black not blue”
“So doesnt flow”
“fatter than previous versions”
“Incorrect description and image - avoid”
“Waste of money”
Top return reasons
Common questions
- Is ink cartridges fountain pen profitable to sell on Amazon United Kingdom?
- The niche generates £49K/yr across 28 tracked products. 90-day search growth is -28.3%. Flapen's verdict: Skip it (41/100).
- How competitive is the ink cartridges fountain pen niche?
- 12 brands and 61 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in ink cartridges fountain pen?
- Top complaints mined from reviews: Size-Overall, Compatibility-Overall, Cartridge/Ink Quality. The return rate is 0.4%.
- When does demand for ink cartridges fountain pen peak?
- Demand peaks in Dec; the busiest month runs 1.8× the quietest.
- What does it cost to enter the ink cartridges fountain pen niche?
- Listings span £0.86–£11.73; the average listing price is £4.63 (sweet spot $15–$100). The average incumbent carries 6,156 reviews — the moat a new listing must climb.