Graphtech Tusq Nut Slotted Carvin 7 String PQ-6700-00 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: Ivory Thickness: 3/16" (4.95 mm); Length: 1-29/32" (48.72 mm) Height: 11/32" (8.66 mm); First to Last String: 1-5/8" (41.15 mm) Model: PQ-6700-00