Features:
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.

Specifications:
Material: Metal
Style: 4mm Ball End,5mm Ball End (Option)
Size: 12.5*7.5cm/ 5.9*1.77"

Please 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 includes:
1 X Guitar Truss Rod Wrench

• Adjust the guitar neck straight,suitable for Martin guitar, regardless of the types, the piano body shall be general.
• Neck wrench specialized to the adjusting hole of the guitar neck relatively deep.
• Counter-clockwise on the nut always gives you some relief. Clockwise removes relief. Do your adjustment a little at a time with the guitar tuned up to pitch.
• For Martin and Most Acoustic Guitar
• Style: 4mm Ball End,5mm Ball End (Option)

Adjust the guitar neck straight,suitable for Martin guitar, regardless of the types, the piano body shall be general.Awakingdemi