Graph Tech TUSQ XL Tall String Tree. Teflon impregnated self-lubricating Black Tusq material provides superior tuning stability and tone. Bottom can be sanded to adjust the mounting height to your exact needed. Includes two different lenght mounting screws.
- Teflon impregnated self-lubricating material.
- Laboratory-proven to enhance harmonics up to 200%.
- Used by the world's finest guitar manufacturers.