Item Name: File Multifunction Crowning File Guitar Grinding File Fretboard Dressing Tool. Material: Stainless SteelFeatures: used for polishing and maintenance of guitar neck wireScope of application:Various Guitar InstrumentsProduct name:Grinding FileSize: 185*15*4mmPackage Includes:1 Piece Grinding fileNote:Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement. *