Item Name: Fingerboard Sound Dressing Tool Crowning File Fretboard Guitar Grinding File. Description Size: 185*15*4mmMaterial: Stainless SteelFeatures: used for polishing and maintenance of guitar neck wireScope of application:Various Guitar InstrumentsProduct name:Grinding FilePackage 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.