Graphtech Black Tusq XL Blank Standard Nut PT-2200-00 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 3/4" (44.45 mm) Height: 1/4" (6.2 mm) Model: PT-2200-00