Amazon.com: Guyker Bass Tuners (6 for Right) - 1:26 Ratio Open Gear Tuning Key Pegs Machine Head Replacement for Electric Jazz Guitar Bass or Precision Instruments - Black : Musical Instruments
Amazon.com: Musiclily Pro 4 Inline Sealed Bass Tuners Tuning Pegs Keys Machine Heads Set for 4 String Precision Jazz Bass, Black : Musical Instruments
Rickard Cyclone High Ratio Tuning Pegs for Guitar with Black Knobs, Set of 6 - StewMac
5-String Bass Tuners 4R1L Black Open Gear Tuners Tuning Pegs Keys Machine Heads | eBay
Bass Tuning Machines – Hipshot Products
Schaller Bass Machines, Set of 4-In-Line - StewMac
Bass BM | Machine Heads | Schaller Webshop
Tuning Machines For Bass
Höfner Tuning Machines 62 H61/74B – Thomann United States