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Protractor

Maybe

An estimated 0.2% of orders come back. But products sell for $4.59 on average, outside the sweet spot, so Protractor is a Maybe.

Flapen Score
55
55 / 100
Top 21% of 2,225 DIY & Tools niches · +6 vs the category median of 49
Market size
£443K/yr889K searches / yr
90-day growth
+62.7%search demand this quarter
Competition
67%top-5 click share · 11 brands · 97 sellers

Flapen Score

Protractor against its category

The dotted line is the DIY & Tools average. Past it, Protractor is stronger. Inside it, weaker.

55Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Protractor market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Protractor 889K times last year and spent an estimated £443K. The top 5 brands take 87% of clicks. Demand peaks in Apr–May–Jun–Sep. Flapen scores it 55 out of 100, a Maybe.

01 · Demand

An estimated 10.8% of those searches ended in a purchase.

Shoppers searched for this 889K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 10.8% of those searches ended in a purchase. Searches in the last 90 days moved +62.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £443K a year.

Searches, last 12 months
889K
Growth, 90 days vs prior 90
+62.7%
Conversion, latest week
10.8%
Market size, estimated
£443Ka year
Peak month
May6.9× the quietest month
Top search term
protractor241K searches a year

02 · Price

A sale here is worth £4.59.

Listings sell for £4.59 on average, from £2.11 to £18.64. Amazon reports units sold in ranges. This niche sold 150K to 200K a year. The average listing sells 12,500 to 15,000 of them. At £4.59 that is £57K to £69K a year per listing.

Average price
£4.59under the $15 to $100 sweet spot
Price range
£2.11–£18.64
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
150K–200K
Units per listing a year
12,500–15,000
Revenue per listing a year
£57K–£69K
Returns
0.2%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

56% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #11 within Measuring & Layout Tools. It carries 1,720 reviews at 4.47 stars, so a new listing needs social proof before a better product.

Sponsored listings
56%
Prime listings
94%
Out of stock, average day
0.0%
Average rank
#11in Measuring & Layout Tools
Average rating
4.47 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,720per listing
Listings tracked
18

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 35 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
35 months

Products

Top Protractor 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 22, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 67% of clicks. Leaders hold, but buyers still shop past them.

£0£44K£89K£133K£177K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 rising

Sellers

97

Est. top-5 brand share

87%

Top 20: 100%

Est. top-5 click share

67%

Top 20: 100%

Open market

10%

  • Helix60%
  • Amazon Basics15%
  • CALCUSO4%
  • Ainkou4%
  • Fashionstationery.com4%
  • SRLWMYI3%
  • Open — no brand owns it (5 brands, 10%)

Demand

Protractor search demand

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

35K25KSpike '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Sep · busiest ÷ quietest = 6.9×

Search terms

Top Protractor search terms shoppers use

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

  • protractor241K/yr
  • maths set153K/yr
  • geometry sets83K/yr
  • protractor and compass set75K/yr
  • maths sets for secondary school73K/yr
  • oxford maths set34K/yr
  • protractor set27K/yr
  • geometry set26K/yr
  • ruler set25K/yr
  • geometry sets for secondary school32K/yr

Reviews and returns

What reviews say buyers love and hate about Protractor

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

31%of positive reviews mention “Quality-Overall”
22%of negative reviews mention “Advertised Vs Actual Product”
0.2%of orders come back
“the photo is deceptive”
A buyer, on “Advertised Vs Actual Product”22% 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.

18 topics

NegativePositive

FAQ

Common Protractor 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