This official Fender vintage style pre-slotted bone nut is used on American Vintage series Stratocaster and Telecaster guitars manufactured from 2012 to present. It has a modern 9.5" bottom radius and a vintage style 7.25" top radius (please check the nut slot radius of your guitar as it will not fit vintage guitars with a 7.25" slot radius). Some filing and shaping may be required to ensure proper fit and performance.