---
title: "Black String — $56K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/arts-crafts-sewing/black-string"
last_updated: "2026-08-09T05:13:31.378Z"
locale: en
meta:
description: "Niche score 47/100 · $56K/yr market · 66K searches/yr · $7.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $56K/yr market · 66K searches/yr · $7.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Black String — $56K/yr Amazon US Niche (2026) - Flapen"
---
# **black string**
**Skip it**
Prices mostly outside the sweet spot ($4.40–$14.03) — this niche doesn't clear our bar today.
Market size 14Growth 39Conversion 95Competition 51Returns 86Price range 0Avg price 20Brand share 76Review moat 46Quality gap 20
**Conversion**
**Great****11.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****1,863.78**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+11.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****$7.13**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****$56K**
$56K/yr · 66K searches
**Price range**
**Bad****$4.40–$14.03**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, black string is a $56K/yr Amazon United States market (66K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 47/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black string market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$57K–$71K**
- units × avg price
- **Conversion rate**
- **11.9%**
- **Avg BSR**
- **#63**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **78%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**21**
**Top-5 brand share**
**59%**
Top 20: 100%
**Top-5 click share**
**54%**
Top 20: 97%
**Open market**
**36%**
- Ohtomber25% - LUSTEMBER13% - Kblick8% - Anwyll7% - ANMOFLY6% - Joyberg6%
## **Demand & seasonality**
Weekly Amazon search volume, last 95 weeks — +11.2% search growth over the last 90 days.
3K2KSpike '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 2.7×
[**Open Trend **](https://flapen.com/research/us/arts-crafts-sewing/black-string/trend)
## **Top black string 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%10%$6K20%$11K30%$17K40%$22K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ohtomber Black Natural Cotton Craft String 328ft 2MM Bakers Twine**Ohtomber**$5.93**4.7★2,852 rev](https://www.amazon.com/dp/B09TQYDZ2Q) [2**LUSTEMBER 0.8mm Nylon String Strong Bracelet String Durable Nylon Cord for Jewelry Making Bracelets Beading Necklaces Rattail Braiding Kumihimo Wind Chimes Blinds and Handicrafts**LUSTEMBER**$6.98**4.7★1,284 rev](https://www.amazon.com/dp/B0D4YNNF6W) [3**Kblick Black Nylon String Cord - 1MM 100 Yards Black Twine Bracelet String for Bracelet Making Braided Ornament Lanyard Thread Jewelry Thread Clay Bead Cords for Crafts Macrame Satin**Kblick**$5.57**4.6★880 rev](https://www.amazon.com/dp/B0CNPST7D9) [4**Anwyll 1.5MM Black Nylon String - 110Yards Wind Chime String Weather Resistant Nylon Cord Black Nylon Bracelets String Beading Thread Macrame Trim Cord for Necklace Jewelry Making Craft Halloween**Anwyll**$6.66**4.5★634 rev](https://www.amazon.com/dp/B0C8BHH8X1) [5**984 Ft Twine String Natural Jute Twine 2mm White Cotton Rope 10ply Black Cotton for Crafts Art Gardening Plants Gift Wrapping Decoration Packing String Bulk(3 Rolls)**Joyberg**$5.94**4.8★1,849 rev](https://www.amazon.com/dp/B0BP14N9M5)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vaincre 2PCS 328Ft 2MM Natural Cotton Twine String Black**Vaincre**$5.97**80 revtoday](https://www.amazon.com/dp/B0H6W7C8X7) [**PerkDecor Twine String Natural Jute Twine & Cotton Twine Bundle - Bulk Packing Twine for Crafts Gift Wrapping String Gardening Twine Home Decor (3 Rolls 984ft 2mm)**PerkDecor**$5.31**127 rev3mo ago](https://www.amazon.com/dp/B0GJL8VPMN) [**jijAcraft 328Ft Black Cotton String - 2MM Halloween String Cooking Bakers Twine Heavy Duty Packing Twine Craft Strings for Gift Wrapping Macrame Decor**jijAcraft**$5.49**5 rev5mo ago](https://www.amazon.com/dp/B0GLYNG1B9) [**KINGLAKE Black Jute Twine String - 2mm 164 Feet Long Black String Hemp Jute Rope Cord Twine for Crafts Gift Wrapping Gift Tags Home Decor Halloween**KINGLAKE**$4.40**182 rev5mo ago](https://www.amazon.com/dp/B0GG71Z1SD) [**TRIBERION Paracord Rope 750 lb - 1000ft / 500ft / 200ft / 100ft 5/32 Parachute Cord 4MM 12-Strand para Cord - Heavy Duty Spool String for Survival Camping Gear Survival Bracelet Clothesline**Triberion**$6.76**729 rev10mo ago](https://www.amazon.com/dp/B0FPXHPG7N)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**jijAcraft 328Ft Black Cotton String - 2MM Halloween String Cooking Bakers Twine Heavy Duty Packing Twine Craft Strings for Gift Wrapping Macrame Decor**jijAcraft**$5.49**5.0★**▲ 305%**](https://www.amazon.com/dp/B0GLYNG1B9) [**Vaincre 2PCS 328Ft 2MM Natural Cotton Twine String Black**Vaincre**$5.97**4.8★**▲ 297%**](https://www.amazon.com/dp/B0H6W7C8X7) [**PerkDecor Twine String Natural Jute Twine & Cotton Twine Bundle - Bulk Packing Twine for Crafts Gift Wrapping String Gardening Twine Home Decor (3 Rolls 984ft 2mm)**PerkDecor**$5.31**4.8★**▲ 221%**](https://www.amazon.com/dp/B0GJL8VPMN) [**Black Curling Ribbon 500 Yards Ribbons for Crafts 1/5 Inch Ribbon Balloon String Party Decoration Ribbons for Florist Flower Bows for Graduation Supplies**YCDMLJC**$5.53**4.7★**▲ 200%**](https://www.amazon.com/dp/B0DX18NMS9) [**KINGLAKE Black Jute Twine String - 2mm 164 Feet Long Black String Hemp Jute Rope Cord Twine for Crafts Gift Wrapping Gift Tags Home Decor Halloween**KINGLAKE**$4.40**4.6★**▲ 128%**](https://www.amazon.com/dp/B0GG71Z1SD)
**~~View all trending →~~**
## **What buyers say about black string**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Good variety”*
**Advertised Vs Actual Product**10%
*“As described”*
**Value For Money**10%
*“Great deal”*
**Durability**9%
*“Super durable”*
**Strength**8%
*“has good tensile strength”*
**Color**7%
*“The colors are simply beautiful”*
**Stretchability/Expandability/Elasticity**6%
*“Nice and stretchy”*
**Ease Of Use**5%
*“Easy to use”*
**Efficiency**4%
*“Works well for Kandi”*
**Thickness**3%
*“That said, the thickness of the nylon is perfect for making necklaces or bracelets”*
### **What buyers complain about **
**Stretchability/Expandability/Elasticity**12%
*“Not elastic”*
**Thickness**11%
*“Not as thick as some photos suggest”*
**Quality-Overall**7%
*“Cheap”*
**Rope/Wire Tangling**4%
*“This cord wrapped on the cardboard leaves kinks in the cord which usually shows at the end of the lanyards Im tying”*
**Material Quality**4%
*“I wanted cotton for necklaces, too rough and weak”*
**Hard Feel**4%
*“far too rough”*
**Size-Overall**4%
*“small”*
**Strength**3%
*“Breaks easy”*
**Durability**3%
*“I broke this by pulling on it”*
**Functionality-Overall**3%
*“Doesn't work”*
### **Top return reasons **
**Size-Overall**25%
**Thin**17%
**Stretchability/Expandability/Elasticity**11%
**Advertised Vs Actual Product**10%
**Thickness**8%
**Value For Money**7%
**Functionality-Overall**4%
**Color**4%
**Material Quality**3%
**Quality-Overall**3%
## **Common questions**
- **Is black string profitable to sell on Amazon United States?**
- The niche generates $56K/yr across 23 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +11.2%. Flapen's verdict: Skip it (47/100).
- **How competitive is the black string niche?**
- 19 brands and 21 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 59% of demand.
- **What do buyers complain about in black string?**
- Top complaints mined from reviews: Stretchability/Expandability/Elasticity, Thickness, Quality-Overall. The return rate is 1.4%.
- **When does demand for black string peak?**
- Demand peaks in Sep–Oct; the busiest month runs 2.7× the quietest.
- **What does it cost to enter the black string niche?**
- Listings span $4.40–$14.03; the average listing price is $7.13 (sweet spot $15–$100). The average incumbent carries 1,864 reviews — the moat a new listing must climb.
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