Schaller BM nickel 4-Left Tuning Keys for MusicMan bass

All parts are precision-crafted and surface-finished, the self-locking drive ensures an even, delicate and steady tuning.
All string posts are made of high-grade brass and fitted into the housing with utmost precision, ensuring the best possible tuning accuracy and wear resistance. 
Besides the standard combinations (e.g. 4-in-line or 2/2), all tuner sets may also be ordered with any quantity of left and right tuners.