Graphtech Black Tusq XL 4-Str Bass Nut PT-1204-00 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: Black Thickness: 1/8" (3.17 mm); Length: 1-21/32" (41.91 mm) Height: 3/16" (4.75 mm); First to Last String: 1-1/4 (31.75 mm) Model: PT-1204-00