Graphtech Black Tusq XL Slotted Lefty Nut PT-5000-L0 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" (3.35 mm); Length: 1-11/16" (42.93 mm) Height: 7/32" (5.33 mm); First to Last String: 1-3/8" (35.18 mm) Model: PT-5000-L0; For Left-Handed Guitars