Trussrod Aluminium Channel For Acoustic Guitars, 411mm length Lead I lubri-plate coated internal gearing and

lubri-plate coated internal gearing and rock-solid posts for unparalleled tuning stability and smooth operation

With 43 AWG and an alnico magnet this pickup is based on a Johnny smith sound and really nails it

Please see secondary image for sizing details of this arm and read the following fitting guide before ordering:

If you need adapter bushings to fit a 10mm headstock hole to use with 6mm "metric" tuning machines

Trussrod Aluminium Channel For Acoustic Guitars, 411mm length Lead I lubri-plate coated internal gearing andTrussrod with Aluminium U Channel for Acoustic Guitars 411mm length (this measurement includes the length of the adjusting nut, of which measures 30mm long by itself). These trussrods are adjusted with a 5mm allen key (not included). Aluminium U channel has a 5mm steel rod inside. 411mm length, 11mm width x 9mm height