---
title: "weight stack pin — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/sports-outdoors/weight-stack-pin"
last_updated: "2026-07-18T01:31:14.537Z"
locale: en
meta:
  description: "weight stack pin shows a sweet-spot price point ($26.20 avg), but soft demand (-17.2% this quarter) keeps it on the watch list."
  "og:description": "weight stack pin shows a sweet-spot price point ($26.20 avg), but soft demand (-17.2% this quarter) keeps it on the watch list."
  "og:title": "weight stack pin — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **weight stack pin**

**Worth a look**

Shows a sweet-spot price point ($26.20 avg), but soft demand (-17.2% this quarter) keeps it on the watch list.

Market size 30Growth 16Conversion 63Competition 67Returns 39Price range 83Avg price 95Brand share 87Review moat 92Quality gap 52

**Avg price**

**Incredible****$26.20**

avg listing price — sweet spot $15–$100

**Review moat**

**Great****156.92**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Great****48%**

top-5 brand share — no brand owns this niche

**Price range**

**Great****$5.27–$71.27**

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

**Competition**

**Good****45%**

top-5 click share — leaders hold, buyers still browse

**Conversion**

**Good****5.5%**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Returns**

**Okay****4.3%**

return rate — above 6% kills the launch gate

**Market size**

**Okay****$137K**

$137K/yr · 94K searches

**Growth**

**Bad****-17.2%**

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

## **Competition**

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**27 **▲rising

**Sellers**

**32**

**Top-5 brand share**

**48%**

**Open market**

**46%**

- Draupnir11% - CXPZLLBNHH11% - MICRO GAINZ GAIN MUSCLE 1LB AT A TIME9% - NQEUEPN9% - Zany Zest7% - Vorynne6%

## **Product shelf**

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

0%3%$4K6%$8K9%$12K12%$16K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 36 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![3pcs Weight Stack Pin Gym Pins for Weight Stack Weight Lifting Pins for Universal Home Commercial Gym Strength Training Equipment Machine Pin Insert Accessories3/8  Diameter / 6  Locking Space](https://m.media-amazon.com/images/I/41fu9KQi6FL.jpg)**3pcs Weight Stack Pin Gym Pins for Weight Stack Weight Lifting Pins for Universal Home Commercial Gym Strength Training Equipment Machine Pin Insert Accessories3/8 Diameter / 6 Locking Space**Draupnir**$10.33**4.6★137 rev](https://www.amazon.com/dp/B0DPWZM66B) [2![CXPZLLBNHH Weight Stack Pin Gym Pin with Spring Clip Collar Weight Pins for Weight Stack Machine Weight Stack Extender Pin Strength Training Equipment for Commercial Gym and Home Gym](https://m.media-amazon.com/images/I/31ZwhXmXuVL.jpg)**CXPZLLBNHH Weight Stack Pin Gym Pin with Spring Clip Collar Weight Pins for Weight Stack Machine Weight Stack Extender Pin Strength Training Equipment for Commercial Gym and Home Gym**CXPZLLBNHH**$23.99**4.2★187 rev](https://www.amazon.com/dp/B0D7SHWVRR) [3![Micro Gainz GymPin Weight Stack Extender Pin for Cable Machine & Home Gym Designed for Weight Lifting & Strength Training Allowing Additional Olympic Weight Plates Made in The USA (Size 3/8)](https://m.media-amazon.com/images/I/31eGo0rG9nL.jpg)**Micro Gainz GymPin Weight Stack Extender Pin for Cable Machine & Home Gym Designed for Weight Lifting & Strength Training Allowing Additional Olympic Weight Plates Made in The USA (Size 3/8)**MICRO GAINZ GAIN MUSCLE 1LB AT A TIME**$71.27**4.4★131 rev](https://www.amazon.com/dp/B098PKQMSF) [4![Zany Zest Reinforced Weight Stack Pin Dia:10mm Length:110mm](https://m.media-amazon.com/images/I/31+Y3-pTVRL.jpg)**Zany Zest Reinforced Weight Stack Pin Dia:10mm Length:110mm**Zany Zest**$24.23**4.4★90 rev](https://www.amazon.com/dp/B0FH5CMLKM) [5![NQEUEPN Crescent-Shaped Weight Stack Pin Pin Tensile 3/8 Inch Diameter 4.4 Inch Locking Space Heavy-Duty Gym Pin Weight Plate Pin for Home Gym Exercise Machine Accessories Black Silver](https://m.media-amazon.com/images/I/21LypUu8dcL.jpg)**NQEUEPN Crescent-Shaped Weight Stack Pin Pin Tensile 3/8 Inch Diameter 4.4 Inch Locking Space Heavy-Duty Gym Pin Weight Plate Pin for Home Gym Exercise Machine Accessories Black Silver**NQEUEPN**$5.87**4.6★63 rev](https://www.amazon.com/dp/B0D6YNN6SD)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![YSVORTOT Weight Stack Pin Extender for Cable Machine & Home Gym | 8mm Diameter | Heavy-Duty Steel Construction | 0.39in * 3.1in | Magnetic Safety Design | Adds Up to 80 lbs Extra Weight](https://m.media-amazon.com/images/I/41hiMLvokWL.jpg)**YSVORTOT Weight Stack Pin Extender for Cable Machine & Home Gym | 8mm Diameter | Heavy-Duty Steel Construction | 0.39in * 3.1in | Magnetic Safety Design | Adds Up to 80 lbs Extra Weight**YSVORTOT**$38.70**17 rev4mo ago](https://www.amazon.com/dp/B0GSVQJNBD) [![BLMHTWO 2PCS Weight Pins for Weight Stack Machine Weight Stack Pin Replacement Gym Pins for Weight Stack (3/8 Diameter; 4.4 Locking Space)](https://m.media-amazon.com/images/I/314h+rDi2nL.jpg)**BLMHTWO 2PCS Weight Pins for Weight Stack Machine Weight Stack Pin Replacement Gym Pins for Weight Stack (3/8 Diameter; 4.4 Locking Space)**BLMHTWO**$6.55**3 rev4mo ago](https://www.amazon.com/dp/B0GR4TYS6T) [![Bpbdzz Heavy-Duty Black Weight Stack Pin Extender - 3/8 (10mm) for Home Gym & Commercial Cable Machines High-Strength Steel with Spring Clip Collar 133LBS Max Load Fits 2 Olympic Weight Plates](https://m.media-amazon.com/images/I/31u1YDcYYsL.jpg)**Bpbdzz Heavy-Duty Black Weight Stack Pin Extender - 3/8 (10mm) for Home Gym & Commercial Cable Machines High-Strength Steel with Spring Clip Collar 133LBS Max Load Fits 2 Olympic Weight Plates**Bpbdzz**$20.67**9 rev4mo ago](https://www.amazon.com/dp/B0GJ2V7WHF) [![Ankcora Gym Pin Kit 10mm & 8mm Universal Fit Weight Stack Pin Gympin Weight Pin Gym Pins for Weight Stack Weight Stack Extender Pin Weight Pins for Weight Stack Machine](https://m.media-amazon.com/images/I/41U6EKsGF0L.jpg)**Ankcora Gym Pin Kit 10mm & 8mm Universal Fit Weight Stack Pin Gympin Weight Pin Gym Pins for Weight Stack Weight Stack Extender Pin Weight Pins for Weight Stack Machine**Ankcora**$54.96**4 rev5mo ago](https://www.amazon.com/dp/B0GM8RQ478) [![NQEUEPN 2pcs Weight Stack Pin 3/8in Diameter 6in/15.3cm & 4.4in/11.2cm Weight Loading Pin L Shaped Stack Extender Selector Inserts Gym Fitness Equipment for Home Gym](https://m.media-amazon.com/images/I/31g8g2zJamL.jpg)**NQEUEPN 2pcs Weight Stack Pin 3/8in Diameter 6in/15.3cm & 4.4in/11.2cm Weight Loading Pin L Shaped Stack Extender Selector Inserts Gym Fitness Equipment for Home Gym**NQEUEPN**$8.97**3 rev5mo ago](https://www.amazon.com/dp/B0GKMND8TF)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Ankcora Gym Pin Kit 10mm & 8mm Universal Fit Weight Stack Pin Gympin Weight Pin Gym Pins for Weight Stack Weight Stack Extender Pin Weight Pins for Weight Stack Machine](https://m.media-amazon.com/images/I/41U6EKsGF0L.jpg)**Ankcora Gym Pin Kit 10mm & 8mm Universal Fit Weight Stack Pin Gympin Weight Pin Gym Pins for Weight Stack Weight Stack Extender Pin Weight Pins for Weight Stack Machine**Ankcora**$54.96**3.8★**▲ 300%**](https://www.amazon.com/dp/B0GM8RQ478) [![Fit4Fun 10MM Weight Stack Pin Gym Pin with Spring Clip Collar Weight Stack Extender Pin for Strength Training Equipment Weight Pin for Commercial Gym and Home Gym](https://m.media-amazon.com/images/I/31OC0YzQKeL.jpg)**Fit4Fun 10MM Weight Stack Pin Gym Pin with Spring Clip Collar Weight Stack Extender Pin for Strength Training Equipment Weight Pin for Commercial Gym and Home Gym**Fit4Fun**$26.41**4.3★**▲ 300%**](https://www.amazon.com/dp/B0GHRDQXC3) [![YSVORTOT Weight Stack Pin Extender for Cable Machine & Home Gym | 8mm Diameter | Heavy-Duty Steel Construction | 0.39in * 3.1in | Magnetic Safety Design | Adds Up to 80 lbs Extra Weight](https://m.media-amazon.com/images/I/41hiMLvokWL.jpg)**YSVORTOT Weight Stack Pin Extender for Cable Machine & Home Gym | 8mm Diameter | Heavy-Duty Steel Construction | 0.39in * 3.1in | Magnetic Safety Design | Adds Up to 80 lbs Extra Weight**YSVORTOT**$38.70**4.3★**▲ 289%**](https://www.amazon.com/dp/B0GSVQJNBD) [![BLMHTWO 2PCS Weight Pins for Weight Stack Machine Weight Stack Pin Replacement Gym Pins for Weight Stack (3/8 Diameter; 4.4 Locking Space)](https://m.media-amazon.com/images/I/314h+rDi2nL.jpg)**BLMHTWO 2PCS Weight Pins for Weight Stack Machine Weight Stack Pin Replacement Gym Pins for Weight Stack (3/8 Diameter; 4.4 Locking Space)**BLMHTWO**$6.55**5.0★**▲ 222%**](https://www.amazon.com/dp/B0GR4TYS6T) [![Bpbdzz Heavy-Duty Black Weight Stack Pin Extender - 3/8 (10mm) for Home Gym & Commercial Cable Machines High-Strength Steel with Spring Clip Collar 133LBS Max Load Fits 2 Olympic Weight Plates](https://m.media-amazon.com/images/I/31u1YDcYYsL.jpg)**Bpbdzz Heavy-Duty Black Weight Stack Pin Extender - 3/8 (10mm) for Home Gym & Commercial Cable Machines High-Strength Steel with Spring Clip Collar 133LBS Max Load Fits 2 Olympic Weight Plates**Bpbdzz**$20.67**3.2★**▲ 217%**](https://www.amazon.com/dp/B0GJ2V7WHF)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -17.2% search growth over the last 90 days.

2K2KSpike '25Black Friday '25 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

## **Reviews**

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

### **What buyers love **

**Quality-Overall**18%

*“The build quality seems strong”*

**Advertised Vs Actual Product**11%

*“Works as Advertised”*

**Durability**10%

*“Will probably never have to worry about it breaking”*

**Ease Of Use**10%

*“Easy to use”*

**Size-Overall**8%

*“Fits perfectly”*

**Value For Money**6%

*“Great value for the money”*

**Efficiency**6%

*“useful than I thought they would be”*

**Material Quality**4%

*“Good strong solid material”*

**Exercise/Sports Suitability**3%

*“Great for my gym”*

**Grip**3%

*“the grip is comfortable”*

### **What buyers complain about **

**Size-Overall**21%

*“it can be too short”*

**Durability**7%

*“One of the broke with in a month”*

**Exercise/Sports Suitability**4%

*“Falls out when doing some exercises”*

**Quality-Overall**4%

*“quality isn't good, plastic”*

**Value For Money**4%

*“seems overpriced”*

**Thickness**3%

*“Too thick”*

**Weight Heavy**3%

*“Weighted component is very heavy”*

**Handle Quality**3%

*“Plastic handle comes off easily”*

**Functionality-Overall**3%

*“Didn't work for me”*

**Flexibility**2%

*“It bent”*

### **Top return reasons **

**Size-Overall**65%

**Compatibility-Overall**10%

**Advertised Vs Actual Product**6%

**Functionality-Overall**4%

**Length**2%

**Defective Material/Parts**2%

**Thickness**2%

**Value For Money**1%

**Weight Heavy**1%

**Add-Ons/Attachments**1%