Filling Knife
pricing outside the sweet spot ($6.14 avg) — Filling Knife doesn't clear our bar today.
Flapen Score
Is Filling Knife profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Filling Knife is a £199K/yr Amazon United Kingdom market (229K searches/yr). The top 5 brands hold 74% of demand. Verdict: Skip it — 48/100.
Filling Knife: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -12.5% over the last 90 days and 14.2% of searches end in a purchase.
£199K
revenue / yr
Who owns the niche?
The top 5 brands hold 74% of demand, so 26% of the market is open.
26%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 18 products
Top Filling Knife products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Harris Seriously Good Continental Filling Knives 4 Pack 102064328
- Price
- £2.31
- Rating
- 4.6/5
- Reviews
- 3,920
- Age
- 6y ago
KZXXZH Wallpaper Scrapers 1.5 3 4 5 Wide Putty Knife Set Metal Spackle Knives Paint Tools for Wallpaper/Decals/Drywall Finishing/Plaster Scraping (4 Pack)
- Price
- £5.38
- Rating
- 4.5/5
- Reviews
- 2,887
- Age
- 5y ago
Harris Trade Filling Knife 2
- Price
- £4.01
- Rating
- 4.6/5
- Reviews
- 106
- Age
- 2y ago
7 Piece Stainless Steel Wallpaper Scraper and Paint Tool Set With Filling Knives Spackle Drywall Joint Filler Putty Knife for Plastering Walls - Includes Tool Bag Hand Tools Gifts for Men
- Price
- £12.45
- Rating
- 4.3/5
- Reviews
- 139
- Age
- 3y ago
Sukudon 4 Pieces shankless Blade Painting Tools Seriously Good Continental Filling Knives (45MM+65MM+85MM+105MM)
- Price
- £4.93
- Rating
- 4.4/5
- Reviews
- 262
- Age
- 5y ago
Trending
90-day click momentum
G4GADGET Wallpaper Scraper 3 Inch Stainless Steel Paint & Putty Scraper with Soft Grip Handle Heavy Duty DIY Scraper Tool for Wallpaper Steamer Removal Drywall Filler Glass/Window & Hob Cleaning
- Price
- £3.33
- Rating
- 4.4/5
- Reviews
- 8
- Age
- 8mo ago
WINICE Paint Scraper Set 4 Pack Stainless Steel Putty Knives (2 4 6 8) with Soft Grip Handle Wallpaper Remover & Plastering Tools for Drywall Paint and Wall Repair
- Price
- £8.96
- Rating
- 4.4/5
- Reviews
- 82
- Age
- 1y ago
Axus Decor Pro-Fill (Blue Series) Stainless Steel Flexible Filling Knife Filler Knife - Putty Knife for Professional & DIY Projects - Anti Rust Blade and Rubberized Handle - 2 Inch/ 50mm
- Price
- £4.96
- Rating
- 4.7/5
- Reviews
- 1,377
- Age
- 11y ago
ZAVIA Continental Filling Knives Pack of 4 | Flexible Filling Knife | Stainless Steel Filler Spreader | Filling Knife Set for Holes Cracks & Walls | Filler Knife with Plastic Grip (Standard)
- Price
- £3.40
- Rating
- 4.2/5
- Reviews
- 29
- Age
- 10mo ago
Sukudon 4 Pieces shankless Blade Painting Tools Seriously Good Continental Filling Knives (45MM+65MM+85MM+105MM)
- Price
- £4.93
- Rating
- 4.4/5
- Reviews
- 262
- Age
- 5y ago
Newest
by launch dateG4GADGET Wallpaper Scraper 3 Inch Stainless Steel Paint & Putty Scraper with Soft Grip Handle Heavy Duty DIY Scraper Tool for Wallpaper Steamer Removal Drywall Filler Glass/Window & Hob Cleaning
- Price
- £3.33
- Rating
- 4.4/5
- Reviews
- 8
- Age
- 8mo ago
ZAVIA Continental Filling Knives Pack of 4 | Flexible Filling Knife | Stainless Steel Filler Spreader | Filling Knife Set for Holes Cracks & Walls | Filler Knife with Plastic Grip (Standard)
- Price
- £3.40
- Rating
- 4.2/5
- Reviews
- 29
- Age
- 10mo ago
WINICE Paint Scraper Set 4 Pack Stainless Steel Putty Knives (2 4 6 8) with Soft Grip Handle Wallpaper Remover & Plastering Tools for Drywall Paint and Wall Repair
- Price
- £8.96
- Rating
- 4.4/5
- Reviews
- 82
- Age
- 1y ago
DEKEones 5 PCS Wallpaper Scrapers Set Stainless Steel Wall Filler Scrapers Strippers Remover 4 Paint Scrapers and 1 Multi Scraper Tool Filling Paint Stripper for Drywall Decals (1 3 4 6 10)
- Price
- £11.76
- Rating
- 4.5/5
- Reviews
- 3,406
- Age
- 1y ago
Harris Trade Filling Knife 2
- Price
- £4.01
- Rating
- 4.6/5
- Reviews
- 106
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
Brands
14 falling
Sellers
75
Top-5 brand share
74%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
22%
- Harris41%
- KZXXZH14%
- Axus Decor8%
- YWYHHM6%
- Sukudon5%
- G4GADGET4%
Filling Knife demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.6×
Top Filling Knife search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- filling knife78K/yr
- filler knife43K/yr
- filler tool27K/yr
- filling knife set21K/yr
- wall filler tool9K/yr
- filling knives10K/yr
- flexible filling knife6K/yr
- filler scraper5K/yr
- filler knife for walls5K/yr
- filling blades5K/yr
What reviews say buyers love and hate about Filling Knife
What buyers mention most, as a share of all reviews.
What buyers love
85% of reviews“Excellent product”
“Good price”
“works as it should”
“Comes in handy”
“Great variety of sizes”
What buyers complain about
76% of reviews“I know theyre cheap”
“not as robust as they look”
“expensive for just a small bit of plastic”
“leaves to bigger bead”
“Unfortunately this item came filthy as if it was already used”
Filling Knife return rate & reasons
Why buyers send it back, as a share of all return requests.
0.3%
Return rate
13%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Filling Knife questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
