- For Martin and Most Acoustic Guitar
- Two way L-shape truss rod adjustment
- Neck wrench specialized to the adjusting hole of the guitar neck relatively deep.
- Adjust the guitar neck straight,suitable for Martin guitar, regardless of the types, the piano body shall be general.
- Size: 12.5*7.5cm/ 5.9*1.77"
Color:5mm Ball End
Features: Material: Metal Style: 4mm Ball End,5mm Ball End (Option) Size: 12.5*7.5cm/ 5.9*1.77" Note: It is manual measurement, there may be 2-3cm error. And item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.hope understanding. Package Included: 1 X Guitar Truss Rod Wrench