Graphtech Tusq 6 String Acoustic Nut PQ-1801-00 TUSQ is very easy to sand or file and is very resistant to chipping or flaking. TUSQ nuts provide the best tonal link between your strings and guitar neck. Color: Ivory Thickness: 13/64" (5.15 mm); Length: 1-13/16" (45.90 mm) Height: 11/32" (8.75 mm); First to Last String: 1-1/2" (38.15 mm) Model: PQ-1801-00