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Ruler 15cm

Fail

Prices span $1.51–$5.17, mostly outside the sweet spot, so Ruler 15cm is a Fail.

Flapen Score
44
44 / 100
Ranks 489 of 835 Stationery & Office Supplies niches · −3 vs the category median of 47
Market size
£48K/yr136K searches / yr
90-day growth
+12.3%search demand this quarter
Competition
68%top-5 click share · 14 brands · 34 sellers

Flapen Score

Ruler 15cm against its category

The dotted line is the Stationery & Office Supplies average. Past it, Ruler 15cm is stronger. Inside it, weaker.

44Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Ruler 15cm market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Ruler 15cm 136K times last year and spent an estimated £48K. The top 5 brands take 73% of clicks. Demand peaks in Aug–Sep. Flapen scores it 44 out of 100, a Fail.

01 · Demand

An estimated 12.4% of those searches ended in a purchase.

Shoppers searched for this 136K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 12.4% of those searches ended in a purchase. Searches in the last 90 days moved +12.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £48K a year.

Searches, last 12 months
136K
Growth, 90 days vs prior 90
+12.3%
Conversion, latest week
12.4%
Market size, estimated
£48Ka year
Peak month
September3.3× the quietest month
Top search term
ruler 15cm48K searches a year

02 · Price

A sale here is worth £2.87.

Listings sell for £2.87 on average, from £1.51 to £5.17. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 1,000 to 1,250 of them. At £2.87 that is £3K to £4K a year per listing.

Average price
£2.87under the $15 to $100 sweet spot
Price range
£1.51–£5.17
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
25K–30K
Units per listing a year
1,000–1,250
Revenue per listing a year
£3K–£4K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

73% of listings pay for placement with sponsored ads. 93% ship with Prime. On an average day, 0.3% of listings are out of stock. The average listing ranks #101 within Office Supplies. It carries 502 reviews at 4.59 stars, so a new listing needs social proof before a better product.

Sponsored listings
73%
Prime listings
93%
Out of stock, average day
0.3%
Average rank
#101in Office Supplies
Average rating
4.59 starsAmazon United Kingdom average 4.36 stars
Average reviews
502per listing
Listings tracked
15

04 · Newcomers

0 of last year's 2 launches cleared the first-year sales bar.

2 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 29 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
2
Successful launches
0Amazon's first-year sales bar
Average brand age
29 months

Products

Top Ruler 15cm 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 29, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 68% of clicks. Leaders hold, but buyers still shop past them.

£0£5K£10K£14K£19K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

14 falling

Sellers

34

Est. top-5 brand share

73%

Top 20: 100%

Est. top-5 click share

68%

Top 20: 100%

Open market

21%

  • Helix41%
  • Redamancy11%
  • Ainkou8%
  • Uskerb7%
  • Ashton and Wright6%
  • MSC6%

Demand

Ruler 15cm search demand

Weekly searches over the year, seasonality beneath. Pick a range.

10K6KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug, Sep · busiest ÷ quietest = 3.3×

Search terms

Top Ruler 15cm search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • ruler 15cm48K/yr
  • 15cm ruler34K/yr
  • small ruler17K/yr
  • 15 cm ruler6K/yr
  • helix ruler7K/yr
  • 6 inch ruler7K/yr
  • rulers 15cm4K/yr
  • mini ruler5K/yr
  • small rulers for school 15cm4K/yr
  • oxford ruler3K/yr

Reviews and returns

What reviews say buyers love and hate about Ruler 15cm

We read the reviews and the return reasons for every product selling here.

23%of positive reviews mention “Quality-Overall”
33%of negative reviews mention “Metal Quality”
0.1%of orders come back
“Short metal ruler”
A buyer, on “Metal Quality”33% of negative reviews mention the same topic

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.

14 topics

NegativePositive

FAQ

Common Ruler 15cm 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