Graphtech Strat Style Flat Bottom 42mm PT-5042-00 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" (3.22 mm); Length: 1-5/8" (approx 42mm) Height: 3/16" (4.98 mm); First to Last String: 1-3/8" (35.25 mm) Model: PT-5042-00