1. For martin or other guitar which couldn't reach it with a regular hex wrench truss rod adjustment.
2. Two way L-shape truss rod adjustment tool.
3. Made of carbon steel, durable and highly wear-resistant.
4. Set for most kinds of acoustic guitar, electric guitar and bass.
5. For locking hexagonal screws on the bridge, adjusting the guitar neck.
Weight: Approx. 42-66g / 1.5-2.3oz
Length: Approx. 75+126mm / 3.0+5.0in
Diameter: Approx. 4 or 5mm / 0.2in
Optional Type: 4mm/5mm
size:70x120mm
Material:Carbon steel
colour:Black

Package Contents:
1 x 4mm wrench
1 x 5mm wrench
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

What's in the box
1 X 4mm Wrench
1 X 5mm Wrench