MusicNomad FRET-SHIELD-B-34 Fretboard Protector Guard For B-34in Bass Fret ScaleThere is nothing like peace of mind while saving time and money. MusicNomad's patent pending B 34 Fret Shield sets a new higher standard for total fretboard protection when performing fret work such as polishing, leveling and crowning on 34 Bass Fret Scales up to 24 frets and works on 4 and 5 string bass guitars. Say "NO" to blue tape with our reusable design that goes on in seconds, fully protects without damaging the fretboard and lasts 100's of