ITEM NAME:Guitar Bass fretboard Protector fret Guards with Fret Polished Grinding sto G9W1 Guitar Bass fretboard Protector fret Guards with Fret Polished Grinding sto G9W1 This applies to all kinds of musical instruments grind of leveling frets polished smoothly manpower necessary to use small piece of small things Grinding stone Size:99mm * 11.8mm * 11.8mm fretboard Size:78mm * 22mm,78mm * 13mm Color:silver Material:Stainless steel Package Contents:2 x fretboard 1 x Polished Grinding stone Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.