Graphtech Tusq 1 3/4" Slotted Acoustic Nut PQ-6133-00 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" (4.7 mm); Length: 1-3/4" (44.45 mm) Height: 3/8" (9.88 mm); First to Last String: 1-1/2" (38.02 mm) Model: PQ-6133-00