--- title: "locking tuners 3x3 — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/musical-instruments/locking-tuners-3x3" last_updated: "2026-07-10T00:49:01.775Z" locale: en meta: description: "a small market ($52K/yr) — locking tuners 3x3 doesn't clear our bar today." "og:description": "a small market ($52K/yr) — locking tuners 3x3 doesn't clear our bar today." "og:title": "locking tuners 3x3 — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen" --- Back to Flapen home # **locking tuners 3x3** **Skip it****44/100 ** a small market ($52K/yr) — locking tuners 3x3 doesn't clear our bar today. **Market/yr** **$52K** **Growth (1y)** **+152.8%** **Products** **37** **Brands** **4** was 8 a year ago **Sellers** **47** **Price range** **$22.95–$142.67** **Returns** **4.6%** **Rating** **4.7★** **Skip it** Scored 44/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **3** ×0.30 Growth **71** ×0.30 Competition **68** ×0.20 Quality gap **23** ×0.10 Returns **63** ×0.10 ## **Demand** Weekly Amazon search volume, last 88 weeks — +152.8% year over year. 3K2KHoliday '24Spike '25Prime Day '25Black Friday '25Spike '26Nov '24Feb '25May '25Aug '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Aug, Sep, Oct, Nov · busiest ÷ quietest = 2.2× ## **Competition** - Tonebird62% - Grover26% - guyker11% - Fender1% - Other0% The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them. 4 brands and 47 sellers compete here. **Brands** **4 **▼falling was 8 a year ago **Sellers** **47** **Top 5 brand share** **100%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Grover 502C ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Kidney Button](https://m.media-amazon.com/images/I/41Ste-pdu4L.jpg) [**Grover 502C ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Kidney Button**](https://www.amazon.com/dp/B0F3ZQTJ3D) Tonebird$108.334.6★3513%▼falling 2 ![Grover 406C Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Mid-Size Mini Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Small Kidney Button](https://m.media-amazon.com/images/I/41+7ct1qyCL.jpg) [**Grover 406C Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Mid-Size Mini Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Small Kidney Button**](https://www.amazon.com/dp/B0F8PK36KY) Tonebird$78.284.4★149%—flat 3 ![Grover 102N Rotomatic Tuners - 3+3 - Nickel](https://m.media-amazon.com/images/I/41mhXO2dMLL.jpg) [**Grover 102N Rotomatic Tuners - 3+3 - Nickel**](https://www.amazon.com/dp/B000EEMA6O) Grover$54.434.7★1268%▲rising 4 ![Grover 502CK ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys Tuner Heads Keystone Button with Tonebird Dunlop Polish Cloth Bundle](https://m.media-amazon.com/images/I/41UaZdJxCpL.jpg) [**Grover 502CK ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys Tuner Heads Keystone Button with Tonebird Dunlop Polish Cloth Bundle**](https://www.amazon.com/dp/B0FRB1M3R6) Tonebird$108.295.0★107%▲rising 5 ![Grover 135N Deluxe Vintage Guitar Tuning Machines Tuner Keys Nickel Set 3+3 14:1 Ratio Green Key Keystone Button with Dunlop Polish Cloth Bundle LP Les Paul Style Replacement Upgrade Tuners](https://m.media-amazon.com/images/I/41C6525dSTL.jpg) [**Grover 135N Deluxe Vintage Guitar Tuning Machines Tuner Keys Nickel Set 3+3 14:1 Ratio Green Key Keystone Button with Dunlop Polish Cloth Bundle LP Les Paul Style Replacement Upgrade Tuners**](https://www.amazon.com/dp/B0F55HJH9D) Tonebird$64.804.7★336%▼falling 6 ![Grover 102N ROTOMATICS Guitar Tuners Tuning Machine Set 3+3 Nickel Keys Kidney Button 14:1 Gears for Acoustic or Electric with Tonebird Dunlop Polish Cloth Bundle](https://m.media-amazon.com/images/I/41Mhdj1Q5WL.jpg) [**Grover 102N ROTOMATICS Guitar Tuners Tuning Machine Set 3+3 Nickel Keys Kidney Button 14:1 Gears for Acoustic or Electric with Tonebird Dunlop Polish Cloth Bundle**](https://www.amazon.com/dp/B0F9B9XH3H) Tonebird$67.035.0★85%▲rising 7 ![Grover 502G ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Gold Tuning Keys Kidney Button Tonebird Dunlop Polish Cloth Bundle Tuner Heads](https://m.media-amazon.com/images/I/41KXCOhHglL.jpg) [**Grover 502G ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Gold Tuning Keys Kidney Button Tonebird Dunlop Polish Cloth Bundle Tuner Heads**](https://www.amazon.com/dp/B0F9GVGK7B) Tonebird$135.684.3★144%▲rising 8 ![Grover 102-18C ROTOMATICS Guitar Tuners Tuning Machine Set 18:1 3+3 Chrome Keys Sperzel Style with Tonebird Dunlop Polish Cloth Bundle Kidney Button Fine Tune Gears for Acoustic or Electric](https://m.media-amazon.com/images/I/4112QFyqJjL.jpg) [**Grover 102-18C ROTOMATICS Guitar Tuners Tuning Machine Set 18:1 3+3 Chrome Keys Sperzel Style with Tonebird Dunlop Polish Cloth Bundle Kidney Button Fine Tune Gears for Acoustic or Electric**](https://www.amazon.com/dp/B0F8PBR64L) Tonebird$74.404.9★103%▼falling 9 ![Grover 406C6 Locking Rotomatics Guitar Tuners In-Line Tuning Machines Set 18:1 Chrome Mid-Size Mini Tuning Keys with Tonebird Dunlop Polish Cloth Bundle INLINE 6 Tuner Heads Small Kidney Button](https://m.media-amazon.com/images/I/41ToDjc670L.jpg) [**Grover 406C6 Locking Rotomatics Guitar Tuners In-Line Tuning Machines Set 18:1 Chrome Mid-Size Mini Tuning Keys with Tonebird Dunlop Polish Cloth Bundle INLINE 6 Tuner Heads Small Kidney Button**](https://www.amazon.com/dp/B0FW5RFXM5) Tonebird$79.665.0★23%▲rising 10 ![Guyker Guitar Machine Heads (3L + 3R Handed) 1:21 Sealed Tuners Tuning Key Pegs with Big handle Replacement for Electric Folk or Acoustic Guitars Chrome GK102C](https://m.media-amazon.com/images/I/41fyym3qijL.jpg) [**Guyker Guitar Machine Heads (3L + 3R Handed) 1:21 Sealed Tuners Tuning Key Pegs with Big handle Replacement for Electric Folk or Acoustic Guitars Chrome GK102C**](https://www.amazon.com/dp/B08F2FWBHY) guyker$22.954.6★1793%▲rising 11 ![Guyker Guitar Locking Tuners (3L + 3R) - 1:21 High End Roto-Grip Rotomatic Lock String Tuning Key Pegs Machine Head with Big Handle Replacement - Chrome](https://m.media-amazon.com/images/I/41aGXqNfyEL.jpg) [**Guyker Guitar Locking Tuners (3L + 3R) - 1:21 High End Roto-Grip Rotomatic Lock String Tuning Key Pegs Machine Head with Big Handle Replacement - Chrome**](https://www.amazon.com/dp/B08ZXX32W2) guyker$39.204.6★1053%▲rising 12 ![Grover 406G Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Gold Mid-Size Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Small Kidney Button](https://m.media-amazon.com/images/I/41C1xo42NgL.jpg) [**Grover 406G Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Gold Mid-Size Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Small Kidney Button**](https://www.amazon.com/dp/B0FBBYB8NZ) Tonebird$103.564.7★42%▲rising 13 ![Grover V97N STA-TITE 14:1 Open Gear Guitar Tuners Vintage Style Nickel Tuning Machines 3+3 with Butter Bean Button For Solid (Vertical) Headstock with Tonebird Dunlop Polish Cloth Bundle](https://m.media-amazon.com/images/I/41t1mLyNLEL.jpg) [**Grover V97N STA-TITE 14:1 Open Gear Guitar Tuners Vintage Style Nickel Tuning Machines 3+3 with Butter Bean Button For Solid (Vertical) Headstock with Tonebird Dunlop Polish Cloth Bundle**](https://www.amazon.com/dp/B0F7K9X73N) Tonebird$59.084.5★82%—flat 14 ![Grover 406C Mini Locking Rotomatic Tuners - 3+3 - Chrome](https://m.media-amazon.com/images/I/41PxugxnKqL.jpg) [**Grover 406C Mini Locking Rotomatic Tuners - 3+3 - Chrome**](https://www.amazon.com/dp/B0007Y3XGW) Grover$64.854.7★6232%▼falling 15 ![Grover 135N Vintage Tuners 3+3 - Nickel](https://m.media-amazon.com/images/I/416f-QRJFwL.jpg) [**Grover 135N Vintage Tuners 3+3 - Nickel**](https://www.amazon.com/dp/B000PR3JEM) Grover$52.894.7★8932%▼falling **~~Showing 15 of 37 — show all ~~** ## **Product shelf** All 37 tracked products in this niche. Top sellersNewestTrending [![Grover 502C ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Kidney Button](https://m.media-amazon.com/images/I/41Ste-pdu4L.jpg)**Grover 502C ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Kidney Button** Tonebird**$108.33**4.6★35 reviews](https://www.amazon.com/dp/B0F3ZQTJ3D) [![Grover 406C Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Mid-Size Mini Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Small Kidney Button](https://m.media-amazon.com/images/I/41+7ct1qyCL.jpg)**Grover 406C Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Mid-Size Mini Tuning Keys with Tonebird Dunlop Polish Cloth Bundle Tuner Heads with Small Kidney Button** Tonebird**$78.28**4.4★14 reviews](https://www.amazon.com/dp/B0F8PK36KY) [![Grover 102N Rotomatic Tuners - 3+3 - Nickel](https://m.media-amazon.com/images/I/41mhXO2dMLL.jpg)**Grover 102N Rotomatic Tuners - 3+3 - Nickel** Grover**$54.43**4.7★126 reviews](https://www.amazon.com/dp/B000EEMA6O) [![Grover 502CK ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys Tuner Heads Keystone Button with Tonebird Dunlop Polish Cloth Bundle](https://m.media-amazon.com/images/I/41UaZdJxCpL.jpg)**Grover 502CK ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Chrome Tuning Keys Tuner Heads Keystone Button with Tonebird Dunlop Polish Cloth Bundle** Tonebird**$108.29**5.0★10 reviews](https://www.amazon.com/dp/B0FRB1M3R6) [![Grover 135N Deluxe Vintage Guitar Tuning Machines Tuner Keys Nickel Set 3+3 14:1 Ratio Green Key Keystone Button with Dunlop Polish Cloth Bundle LP Les Paul Style Replacement Upgrade Tuners](https://m.media-amazon.com/images/I/41C6525dSTL.jpg)**Grover 135N Deluxe Vintage Guitar Tuning Machines Tuner Keys Nickel Set 3+3 14:1 Ratio Green Key Keystone Button with Dunlop Polish Cloth Bundle LP Les Paul Style Replacement Upgrade Tuners** Tonebird**$64.80**4.7★33 reviews](https://www.amazon.com/dp/B0F55HJH9D) [![Grover 102N ROTOMATICS Guitar Tuners Tuning Machine Set 3+3 Nickel Keys Kidney Button 14:1 Gears for Acoustic or Electric with Tonebird Dunlop Polish Cloth Bundle](https://m.media-amazon.com/images/I/41Mhdj1Q5WL.jpg)**Grover 102N ROTOMATICS Guitar Tuners Tuning Machine Set 3+3 Nickel Keys Kidney Button 14:1 Gears for Acoustic or Electric with Tonebird Dunlop Polish Cloth Bundle** Tonebird**$67.03**5.0★8 reviews](https://www.amazon.com/dp/B0F9B9XH3H) [![Grover 502G ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Gold Tuning Keys Kidney Button Tonebird Dunlop Polish Cloth Bundle Tuner Heads](https://m.media-amazon.com/images/I/41KXCOhHglL.jpg)**Grover 502G ROTO-GRIP Locking Rotomatics Guitar Tuners Tuning Machines Set 3+3 18:1 Gold Tuning Keys Kidney Button Tonebird Dunlop Polish Cloth Bundle Tuner Heads** Tonebird**$135.68**4.3★14 reviews](https://www.amazon.com/dp/B0F9GVGK7B) [![Grover 102-18C ROTOMATICS Guitar Tuners Tuning Machine Set 18:1 3+3 Chrome Keys Sperzel Style with Tonebird Dunlop Polish Cloth Bundle Kidney Button Fine Tune Gears for Acoustic or Electric](https://m.media-amazon.com/images/I/4112QFyqJjL.jpg)**Grover 102-18C ROTOMATICS Guitar Tuners Tuning Machine Set 18:1 3+3 Chrome Keys Sperzel Style with Tonebird Dunlop Polish Cloth Bundle Kidney Button Fine Tune Gears for Acoustic or Electric** Tonebird**$74.40**4.9★10 reviews](https://www.amazon.com/dp/B0F8PBR64L) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Tune Retention**43% *“Perfect Tune”* **Quality-Overall**20% *“The perfect balance between quality and affordability”* **Assembly/Installation**11% *“Easy install”* **Size-Overall**6% *“They fit perfectly”* **Value For Money**5% *“A great upgrade for somone watching their budget”* **Advertised Vs Actual Product**3% *“Everything as advertised”* **Strength**3% *“They feel sturdy”* **Durability**3% *“durability is excellent”* **Functionality-Overall**1% *“But the rest work great”* **Material Quality**0% *“These have a good solid feel”* ### **What buyers complain about ** **Tune Retention**29% *“Unfortunately they do not stay in tune for long”* **Advertised Vs Actual Product**13% *“bad description”* **Defective Material/Parts**8% *“One of the knobs in the set came broken”* **Product Condition**6% *“not used or b stock”* **Strap/String Quality**5% *“Breaks strings”* **Size-Overall**3% *“1 screw was too big in diameter”* **Color**3% *“Colors off,”* **Value For Money**3% *“The cost is mid-level”* **Assembly/Installation**3% *“hard to install”* **Mounting**2% *“Only complaint is about the 6 small screws provided to complete install”* #### **Top return reasons**- Size-Overall37% - Tune Retention19% - Advertised Vs Actual Product11% - Mounting10% - Compatibility-Overall8% - Defective Material/Parts4% - Color3% - Mechanism Issues2% - Product Condition2% - Value For Money1%