---
title: "Rainbow Pla — $497K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/industrial-scientific/rainbow-pla"
last_updated: "2026-08-08T12:19:05.577Z"
locale: en
meta:
description: "Niche score 63/100 · $497K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Aug 2026."
"og:description": "Niche score 63/100 · $497K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Aug 2026."
"og:title": "Rainbow Pla — $497K/yr Amazon US Niche (2026) - Flapen"
---
# **rainbow pla**
**Worth a look**
Shows low returns (1.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 60Growth 12Conversion 77Competition 80Returns 93Price range 83Avg price 93Brand share 74Review moat 43Quality gap 52
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$22.18**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.52–$57.51**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****35%**
top-5 click share — an open shelf
**Conversion**
**Great****7.4%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****60%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****$497K**
$497K/yr · 304K searches
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,202.72**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-25.2%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, rainbow pla is a $497K/yr Amazon United States market (304K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Worth a look — 63/100.
Data updated Aug 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rainbow pla market data**
- **Units sold / yr**
- **20K–25K**
- avg 250–500/product
- **Revenue / yr**
- **$444K–$555K**
- units × avg price
- **Conversion rate**
- **7.4%**
- **Avg BSR**
- **#127**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **98%**
- **Out of stock**
- **1.8%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **179 days**
## **Competition & brand share**
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.
**Brands**
**25 **▼falling
**Sellers**
**31**
**Top-5 brand share**
**60%**
Top 20: 97%
**Top-5 click share**
**35%**
Top 20: 71%
**Open market**
**36%**
- SUNLU31% - Creality15% - Stronghero3D6% - RAMBERY5% - YOOPAI4% - Geeetech4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -25.2% search growth over the last 90 days.
23K18KHoliday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Dec · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/us/industrial-scientific/rainbow-pla/trend)
## **Top rainbow pla search terms**
- **rainbow pla**94K/yr-19.6%5.8% conv. - **rainbow pla filament**57K/yr-25.0%4.8% conv. - **rainbow filament pla**39K/yr-23.1%4.9% conv. - **pla rainbow**14K/yr-0.1%3.9% conv. - **rainbow silk pla**12K/yr-20.4%4.5% conv. - **sunlu multicolor pla filament**9K/yr-45.1%1.5% conv. - **silk rainbow pla filament**7K/yr-29.1%3.6% conv. - **sunlu rainbow filament**5K/yr-17.2%4.0% conv. - **sunlu rainbow**7K/yr-38.1%4.2% conv. - **sunlu rainbow pla**10K/yr-58.0%4.5% conv. [**All search terms **](https://flapen.com/research/us/industrial-scientific/rainbow-pla/search-terms)
## **Top rainbow pla 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%3%$15K6%$30K9%$45K12%$60K101001K10K100K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**SUNLU Silk Rainbow PLA Filament Multicolor Silk 3D Printer Filament 1.75mm +/- 0.02mm Fast Color Change Each 8 Meters 330 Meters 1kg/2.2lbs Silk Rainbow Filament(Pink-Yellow-Blue-Green)**SUNLU**$20.74**4.5★4,513 rev](https://www.amazon.com/dp/B0DFBS9CHZ) [2**Creality 3D Printer Filament Rainbow PLA+ Filament 1.75mm Multicolor 1KG**Creality**$20.93**4.4★884 rev](https://www.amazon.com/dp/B0C39XCDSY) [3**Creality 3D Printer Filament 1.75mm Rainbow Upgrade PLA+ Filament Strong Toughness No-Tangling Vacuum Packaging 3D Printing Filament Fit Most 3D Printers 1kg Spool Accuracy +/- 0.02mm Multi-Color**Creality**$22.05**4.4★9,633 rev](https://www.amazon.com/dp/B0C77MN73D) [4**RAMBERY Silk Rainbow 3D Printer Filament 1.75mm Multi-Color PLA Filament Fast Color Change Candy Color 3D Printing Filament 1kg Spool**RAMBERY**$18.98**4.4★100 rev](https://www.amazon.com/dp/B0F1LWMJY3) [5**SUNLU 4KG Rainbow PLA Filament Bundle Multicolor 4kg in Total**SUNLU**$57.51**4.3★43 rev](https://www.amazon.com/dp/B0DQNP5C88)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SUNLU Rainbow PLA Filament 1.75mm 1KG Spool(2.2 lbs) Rainbow PLA 01**SUNLU**$22.30**12 rev9mo ago](https://www.amazon.com/dp/B0FLXLVF2G) [**SUNLU Rainbow PLA Filament 1.75mm 1KG Spool(2.2 lbs) Rainbow PLA 03**SUNLU**$18.16**17 rev9mo ago](https://www.amazon.com/dp/B0FLXLG9XN) [**Stronghero3D PLA 3D Printer Filament Candy Silk Rainbow S3 Glossy Multi Color PLA Filament 1.75mm Net Weight 1kg(2.2lbs) Accuracy +/-0.05mm**Stronghero3D**$18.71**57 rev1y ago](https://www.amazon.com/dp/B0F7WXYN5X) [**SUNLU 4KG Rainbow PLA Filament Bundle Multicolor 4kg in Total**SUNLU**$57.51**43 rev1y ago](https://www.amazon.com/dp/B0DQNP5C88) [**RAMBERY Silk Rainbow 3D Printer Filament 1.75mm Multi-Color PLA Filament Fast Color Change Candy Color 3D Printing Filament 1kg Spool**RAMBERY**$18.98**100 rev1y ago](https://www.amazon.com/dp/B0F1LWMJY3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SUNLU PLA Rainbow Filament Yellow-Green-Blue-Pink**SUNLU**$20.11**4.4★**▲ 306%**](https://www.amazon.com/dp/B0CHWDDKMM) [**Geeetech Rainbow PLA Filament 1.75mm 3D Printer Multicolor Filament Color Changing Filament 1kg (2.2lbs) 1 Spool Dimensional Accuracy +/- 0.02 mm**Geeetech**$19.47**4.4★**▲ 164%**](https://www.amazon.com/dp/B0C5TBM781) [**Stronghero3D PLA 3D Printer Filament Candy Silk Rainbow S3 Glossy Multi Color PLA Filament 1.75mm Net Weight 1kg(2.2lbs) Accuracy +/-0.05mm**Stronghero3D**$18.71**4.3★**▲ 140%**](https://www.amazon.com/dp/B0F7WXYN5X) [**RAMBERY Silk Rainbow 3D Printer Filament 1.75mm Multi-Color PLA Filament Fast Color Change Candy Color 3D Printing Filament 1kg Spool**RAMBERY**$18.98**4.4★**▲ 100%**](https://www.amazon.com/dp/B0F1LWMJY3) [**SUNLU Rainbow PLA Filament 1.75mm 1KG Spool(2.2 lbs) Rainbow PLA 01**SUNLU**$22.30**4.9★**▲ 89%**](https://www.amazon.com/dp/B0FLXLVF2G)
**~~View all trending →~~**
## **What buyers say about rainbow pla**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Color**43%
*“Colors are amazing”*
**Quality-Overall**17%
*“Excellent product”*
**Material Quality**4%
*“Excellent Quality Filament – Smooth, Reliable, and Consistent”*
**Adhesion/Stickiness**4%
*“No issues with adhesion”*
**Value For Money**4%
*“Well worth the money”*
**Efficiency**3%
*“Works as needed”*
**Brightness/Shine/Glow**3%
*“A lot of fun and it GLOWS”*
**Ease Of Use**2%
*“was easy to work with”*
**Compatibility-Overall**2%
*“Works Great with Bambu Lab A1”*
**Advertised Vs Actual Product**2%
*“As advertised”*
### **What buyers complain about **
**Color**22%
*“Colors don't match”*
**Print Quality**18%
*“It does not print well”*
**Quality-Overall**8%
*“Crappy quality control”*
**Advertised Vs Actual Product**7%
*“not as described”*
**Adhesion/Stickiness**5%
*“For some reason this stuff won't stick”*
**Functionality-Overall**4%
*“it doesn't work well in it at all”*
**Size-Overall**4%
*“When it arrived it is super small”*
**Durability**3%
*“Breaks Easily”*
**Strength**2%
*“Very brittle”*
**Value For Money**2%
*“not worth it”*
### **Top return reasons **
**Size-Overall**35%
**Compatibility-Overall**13%
**Color**12%
**Advertised Vs Actual Product**9%
**Functionality-Overall**7%
**Print Quality**7%
**Value For Money**3%
**Material Quality**3%
**Defective Material/Parts**2%
**Adhesion/Stickiness**2%
## **Common questions**
- **Is rainbow pla profitable to sell on Amazon United States?**
- The niche generates $497K/yr across 50 tracked products. 2 of 8 products launched in the last 360 days are still selling. 90-day search growth is -25.2%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the rainbow pla niche?**
- 25 brands and 31 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in rainbow pla?**
- Top complaints mined from reviews: Color, Print Quality, Quality-Overall. The return rate is 1.1%.
- **When does demand for rainbow pla peak?**
- Demand peaks in Jan–Feb–Dec; the busiest month runs 2.8× the quietest.
- **What does it cost to enter the rainbow pla niche?**
- Listings span $7.52–$57.51; the average listing price is $22.18 (sweet spot $15–$100). The average incumbent carries 2,203 reviews — the moat a new listing must climb.
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