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Rainbow Filament

Rainbow Filament shows low returns (0.3%), but a small market ($49K/yr) keeps it on the watch list.

Flapen Score

53
Worth a look

Top 33% of 490 Gewerbe, Industrie & Wissenschaft niches · +4 vs the category median of 49

Market size 12Growth 13Conversion 54Competition 77Returns 98Price range 81Avg price 78Brand share 70Review moat 36Quality gap 55
This niche Category average · 490 niches

Is Rainbow Filament profitable on Amazon?

According to Flapen's Amazon Germany niche tracking, Rainbow Filament is a €49K/yr Amazon Germany market (67K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jan–Dec. Verdict: Worth a look — 53/100.

Rainbow Filament: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -24.6% over the last 90 days and 4.5% of searches end in a purchase.

€49K

revenue / yr

Units sold / yr4K
Search volume / yr-24.6%67K
Conversion rate4.5%
Avg price€16.35

Who owns the niche?

The top 5 brands hold 63% of demand, so 37% of the market is open.

37%

open market share

Brands · sellers16 · 25
Top-5 product click share38%
Open market37%
Avg brand age36 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.

0/100

page quality · 35 products

Sponsored placement86%
New entrants (1y)9· 2 succeeded
Avg rating4.4★
Avg reviews2,902

Top Rainbow Filament products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

€0€2K€4K€6K€8K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

16 falling

Sellers

25

Top-5 brand share

63%

Top 20: 100%

Top-5 click share

38%

Top 20: 83%

Open market

29%

  • SUNLU15%
  • Creality14%
  • Eono14%
  • ERYONE10%
  • GEEETECH10%
  • eSUN8%

Rainbow Filament demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume67KCVR4.5%Products35Brands16Top 5 Brands63%OOS Rate17.8%Rating4.4★Reviews2,902Avg BSR#111
5K4KSpike '25Prime Day '25Black Friday '25Holiday '25Spike '26MarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jan, Dec · busiest ÷ quietest = 2.9×

Top Rainbow Filament search terms shoppers use

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

  • rainbow filament11K/yr
  • filament regenbogen10K/yr
  • pla rainbow10K/yr
  • regenbogen filament10K/yr
  • filament rainbow7K/yr
  • rainbow pla6K/yr
  • pla regenbogen6K/yr
  • regenbogen filament pla5K/yr
  • rainbow filament pla4K/yr

What reviews say buyers love and hate about Rainbow Filament

What buyers mention most, as a share of all reviews.

What buyers love

87% of reviews
Farbe31%

Schöne Farben, 1a Support

Druckqualität22%

Mit den Standarteinstellungen auch super zu drucken

Qualität insgesamt13%

Super Qualität

beworben Vs Tatsächliches Produkt5%

Alles war wie versprochen

Materialqualität4%

Interessantes Material

What buyers complain about

70% of reviews
Farbe20%

eher bi-color

Druckqualität11%

Printqualität ist trotz Trocknung mittelmäßig

Verklemmen/Verstopfen8%

Allerdings ist das Filament schon fast zu Anfang verknotet gewesen das man den Druck pausieren musste und es entheddern musste

Haftung/Klebrigkeit6%

Filament bleibt ständig stecken, weil es unregelmäßig aufgewickelt ist

Anzeigefarben5%

Der Farbwechsel kommt für Einzelstücke recht langsam

Rainbow Filament return rate & reasons

Why buyers send it back, as a share of all return requests.

0.3%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Farbe
37%
2Gesamtgröße
11%
3Kompatibilität – insgesamt
11%
4Funktionalität insgesamt
8%
5Druckqualität
6%

Common Rainbow Filament questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Rainbow Filament 53/100 on Amazon Germany — Worth a look. The niche generates €49K/yr across 35 tracked products. 2 of 9 products launched in the last 360 days are still selling. Search demand moved -24.6% over the last 90 days.
Search demand for Rainbow Filament on Amazon Germany peaks in Jan–Dec, where the busiest month runs 2.9× the quietest.