Graph Tech TUSQ man-made ivory slotted nut for martin acoustic guitars with 1-3/4" wide nut and 1-13/32" E to E string spread. PQ-M644-00
- Rich clear tone with bell like highs and big open lows.
- Engineered for maximum vibration transfer.
- Easy to work with - will not chip or flake.
- Laboratory-proven to enhance harmonics up to 200%.
- Used by the world's finest guitar manufacturers.
- No flat or dead spots typical to natural bone or ivory.