One high-quality Micarta synthetic bone pre-slotted string nut for use on American Series Precision Bass and other U.S.- and Mexico-made basses with 9.5"-radius fingerboards. Pre-slotted with string location grooves for easy spacing and positioning when performing final slot filing. 9.5" (241mm) top radius, 7.25” (184mm) bottom radius,1.656" (42.07mm) wide, .125" thickness. Note that some filing and shaping modifications may be required to ensure proper fit and performance. Brand New. Genuine Fender 0048650000. UPC 717669141936.