Nut Graph Tech PT-6116-00 Acoustic Slotted 1- 11/16" Black 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: Black Thickness: 3/16" (4.88 mm); Length: 1-23/32" (43.36 mm) Height: 11/32" (8.41 mm); First to Last String: 1-7/16 (36.45 mm) Model: PT-6116-00