Ninja Knock Box
FailDemand is soft, at -33.5% this quarter, so Ninja Knock Box is a Fail.
- Flapen Score
- 37 / 100Ranks 5,154 of 5,777 Home & Garden niches · −14 vs the category median of 5137
- Market size
- £55K/yr54K searches / yr
- 90-day growth
- -33.5%search demand this quarter
- Competition
- 91%top-5 click share · 7 brands · 19 sellers
Flapen Score
Ninja Knock Box against its category
The dotted line is the Home & Garden average. Past it, Ninja Knock Box is stronger. Inside it, weaker.
Market
The Ninja Knock Box market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Ninja Knock Box 54K times last year and spent an estimated £55K. The top 5 brands take 94% of clicks. Flapen scores it 37 out of 100, a Fail.
01 · Demand
An estimated 6.6% of those searches ended in a purchase.
Shoppers searched for this 54K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 6.6% of those searches ended in a purchase. Searches in the last 90 days moved -33.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated £55K a year.
- Searches, last 12 months
- 54K
- Growth, 90 days vs prior 90
- -33.5%
- Conversion, latest week
- 6.6%
- Market size, estimated
- £55Ka year
- Top search term
- ninja knock box32K searches a year
02 · Price
A sale here is worth £15.53.
Listings sell for £15.53 on average, from £9.46 to £26.14. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 500 to 750 of them. At £15.53 that is £8K to £12K a year per listing.
- Average price
- £15.53inside the $15 to $100 sweet spot
- Price range
- £9.46–£26.14
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 3K–3K
- Units per listing a year
- 500–750
- Revenue per listing a year
- £8K–£12K
- Returns
- 0.9%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
75% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #154 within Coffee, Tea & Espresso. It carries 754 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 75%
- Prime listings
- 88%
- Out of stock, average day
- 0.0%
- Average rank
- #154in Coffee, Tea & Espresso
- Average rating
- 4.53 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 754per listing
- Listings tracked
- 8
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 20 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 20 months
Products
Top Ninja Knock Box 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 27, 2026. The live listing can differ.
Top sellers
by estimated 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
estimated 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
Competition: brands, sellers & click share
The top 5 products take an estimated 91% of clicks. A locked shelf that new listings rarely crack.
Brands
7 falling
Sellers
19
Est. top-5 brand share
94%
Top 20: 100%
Est. 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%)
Demand
Ninja Knock Box search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Dec · busiest ÷ quietest = 3.0× · 8 of 12 months tracked
Search terms
Top Ninja Knock Box search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ninja knock box32K/yr
- coffee knock box ninja11K/yr
- ninja coffee knock box6K/yr
- ninja knock box coffee4K/yr
Reviews and returns
What reviews say buyers love and hate about Ninja Knock Box
We read the reviews and the return reasons for every product selling here.
“Bit pricey”
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 Ninja Knock Box 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









