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53

rainbow filament

Worth a look

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

Market size 12Growth 13Conversion 54Competition 77Returns 98Price range 81Avg price 78Brand share 70Review moat 36Quality gap 55

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Price range

Great€8.20–€46.18

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Great€16.35

avg listing price — sweet spot $15–$100

Competition

Great38%

top-5 click share — an open shelf

Brand share

Good63%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Conversion

Good4.5%

search→purchase rate — share of searches ending in a sale

Review moat

Okay2,901.91

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-24.6%

90-day search growth — must beat 0% to launch

Market size

Bad€49K

€49K/yr · 67K searches

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.

Data updated Jul 13, 2026 · scored weekly · How we score niches

rainbow filament market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
€49K–€65K
units × avg price
Conversion rate
4.5%
Avg BSR
#111
Page quality
0%
Prime
100%
Sponsored
86%
Out of stock
17.8%
Avg brand age
36 months
Avg seller age
245 days

Competition & brand share

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

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%

Demand & seasonality

Weekly Amazon search volume, last 73 weeks — -24.6% search growth over the last 90 days.
5K4KSpike '25Prime Day '25Black Friday '25Holiday '25Spike '26MarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

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

Top rainbow filament search terms

  • 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
All search terms

Top rainbow filament products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%€2K8%€4K12%€6K16%€8K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about rainbow filament

What buyers praise and complain about, mined from review topics.

What buyers love

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”

Haftung/Klebrigkeit4%

“Das Filament haftet gut auf dem Druckbett”

Funktionalität insgesamt2%

“was den Arbeitsprozess deutlich beschleunigt.”

Preis-Leistungs-Verhältnis2%

“Preis Leistung SUPER”

Einfache Reinigung2%

“Es läuft sauber ab”

Benutzerfreundlichkeit1%

“Für DIY-Projekte oder funktionale Drucke ist das ein angenehmer Bonus”

What buyers complain about

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”

beworben Vs Tatsächliches Produkt5%

“Leider entspricht das Farbergebnis überhaupt nicht dem Produktfoto”

Preis-Leistungs-Verhältnis4%

“Lieber 10 Euro mehr ausgeben”

Helligkeit/Glanz/Glühen4%

“es könnte mehr glänzen”

Funktionalität insgesamt3%

“Alle 10 Minuten blieb mein Drucker stehen und ich musste manuell entwirren...”

Materialqualität3%

Top return reasons

Farbe37%
Gesamtgröße11%
Kompatibilität – insgesamt11%
Funktionalität insgesamt8%
Druckqualität6%
beworben Vs Tatsächliches Produkt5%
Verklemmen/Verstopfen4%
Defekt Material/Teile2%
Haltbarkeit2%
Materialqualität2%

Common questions

Is rainbow filament profitable to sell on Amazon Germany?
The niche generates €49K/yr across 35 tracked products. 2 of 9 products launched in the last 360 days are still selling. 90-day search growth is -24.6%. Flapen's verdict: Worth a look (53/100).
How competitive is the rainbow filament niche?
16 brands and 25 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in rainbow filament?
Top complaints mined from reviews: Farbe, Druckqualität, Verklemmen/Verstopfen. The return rate is 0.3%.
When does demand for rainbow filament peak?
Demand peaks in Jan–Dec; the busiest month runs 2.9× the quietest.
What does it cost to enter the rainbow filament niche?
Listings span €8.20–€46.18; the average listing price is €16.35 (sweet spot $15–$100). The average incumbent carries 2,902 reviews — the moat a new listing must climb.