Graphtech Ratio 4-String 4-in-Line Y-Style Bass Machine Heads PRB-4400-B0 PRB-4400-C0 Brand_Tyma Truss rod adjustments have also

Truss rod adjustments have also never been easier thanks to a spoke wheel conveniently located at the base of the neck

for modulation intensity

Use to add drum breaks/pause the drummer during the song

Metric 8mm bushing diameter is perfect for Asian-made guitars with small hole such as Ibanez

Graphtech Ratio 4-String 4-in-Line Y-Style Bass Machine Heads PRB-4400-B0 PRB-4400-C0 Brand_Tyma Truss rod adjustments have alsoGraph Tech's calibrated & synchronized tuning system makes tuning and re tuning your bass faster and more intuitive. Tuning on the fly has never be easier!. Each string position has it's own calibrated gear ratio, so every string feels and reacts the same to any tuning adjustment. One full rotation of any key results in a one full tone pitch change (give or take). From Low E to G, the gear ratio's are 36: 1, 30: 1, 20: 1, and 18: 1. In order to