Ninja Knock Box
soft demand (-33.5% this quarter) — Ninja Knock Box doesn't clear our bar today.
Flapen Score
Ranks 5,154 of 5,777 Home & Garden niches · −14 vs the category median of 51
Is Ninja Knock Box profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Ninja Knock Box is a £55K/yr Amazon United Kingdom market (54K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 37/100.
Ninja Knock Box: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -33.5% over the last 90 days and 6.6% of searches end in a purchase.
£55K
revenue / yr
Who owns the niche?
The top 5 brands hold 94% of demand, so 6% of the market is open.
6%
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 · 8 products
Top Ninja Knock Box 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
Ninja Luxe Café Knock Box Holds 10 Double Shot Pucks XSKKNOCKBOX
- Price
- £26.14
- Rating
- 4.7/5
- Reviews
- 1,239
- Age
- 1y ago

Ninja XSKKNCKBXEUK Knock Box Stainless Steel
- Price
- £25.00
- Rating
- 4.8/5
- Reviews
- 104
- Age
- 1y ago

Coffee Grounds Knock Box - Stainless Steel Espresso Knock Box with Removable Knock Bar and Coffee Brush Non-Slip Base Knock Container Espresso Dump Bin Grind Waste Bin Coffee Maker Accessories
- Price
- £11.06
- Rating
- 4.1/5
- Reviews
- 79
- Age
- 1y ago

Coffee Knock Box - 4.8 Inch Espresso Grounds Bin With Removable Metal Bar Shock-Absorbent Barista Accessory for Coffee Machines
- Price
- £12.42
- Rating
- 4.7/5
- Reviews
- 1,718
- Age
- 6y ago

Ideal Swan Barista Style Espresso Knock Box - 4.8 Inch Shock-Absorbent Coffee Bin with Removable Metal Knock Bar and Non-Slip Base (Black)
- Price
- £11.79
- Rating
- 4.6/5
- Reviews
- 2,078
- Age
- 5y ago
Trending
90-day click momentum
Ninja XSKKNCKBXEUK Knock Box Stainless Steel
- Price
- £25.00
- Rating
- 4.8/5
- Reviews
- 104
- Age
- 1y ago

Coffee Knock Box 1.2L Stainless Steel Espresso Box Container for Portafilter Puck Coffee Grounds Collector Coffee Bin for Ninja Sage Coffee Machine Silver
- Price
- £14.07
- Rating
- 4.4/5
- Reviews
- 111
- Age
- 1y ago

Coffee Knock Box - 4.8 Inch Espresso Grounds Bin With Removable Metal Bar Shock-Absorbent Barista Accessory for Coffee Machines
- Price
- £12.42
- Rating
- 4.7/5
- Reviews
- 1,718
- Age
- 6y ago

Coffee Grounds Knock Box - Stainless Steel Espresso Knock Box with Removable Knock Bar and Coffee Brush Non-Slip Base Knock Container Espresso Dump Bin Grind Waste Bin Coffee Maker Accessories
- Price
- £11.06
- Rating
- 4.1/5
- Reviews
- 79
- Age
- 1y ago

brikinte Silicone Espresso Knock Box for Ninja Luxe Espresso Accessories
- Price
- £14.27
- Rating
- 4.4/5
- Reviews
- 38
- Age
- 6mo ago
Newest
by launch date
brikinte Silicone Espresso Knock Box for Ninja Luxe Espresso Accessories
- Price
- £14.27
- Rating
- 4.4/5
- Reviews
- 38
- Age
- 6mo ago

Coffee Grounds Knock Box - Stainless Steel Espresso Knock Box with Removable Knock Bar and Coffee Brush Non-Slip Base Knock Container Espresso Dump Bin Grind Waste Bin Coffee Maker Accessories
- Price
- £11.06
- Rating
- 4.1/5
- Reviews
- 79
- Age
- 1y ago

Ninja XSKKNCKBXEUK Knock Box Stainless Steel
- Price
- £25.00
- Rating
- 4.8/5
- Reviews
- 104
- Age
- 1y ago

Coffee Knock Box 1.2L Stainless Steel Espresso Box Container for Portafilter Puck Coffee Grounds Collector Coffee Bin for Ninja Sage Coffee Machine Silver
- Price
- £14.07
- Rating
- 4.4/5
- Reviews
- 111
- Age
- 1y ago

Ninja Luxe Café Knock Box Holds 10 Double Shot Pucks XSKKNOCKBOX
- Price
- £26.14
- Rating
- 4.7/5
- Reviews
- 1,239
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.
Brands
7 falling
Sellers
19
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
91%
Top 20: 100%
Open market
3%
- Ninja76%
- smallwell6%
- Ailelan5%
- Ideal Swan3%
- NOTSEK3%
- brikinte3%
- Open — no brand owns it (1 brand, 3%)
Ninja Knock Box demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Top Ninja Knock Box search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- ninja knock box32K/yr
- coffee knock box ninja11K/yr
- ninja coffee knock box6K/yr
- ninja knock box coffee4K/yr
What reviews say buyers love and hate about Ninja Knock Box
What buyers mention most, as a share of all reviews.
What buyers love
84% of reviews“Good quality for home barista setup”
“inexpensive that blends into a home setup”
“is a sturdy bit of kit”
“easy to clean”
“It does the job”
What buyers complain about
76% of reviews“Bit pricey”
“Broke after 3 months”
“Small”
“Made of plastic”
“Feels and looks a bit cheap”
Ninja Knock Box return rate & reasons
Why buyers send it back, as a share of all return requests.
0.9%
Return rate
63%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Ninja Knock Box questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









