Guitar Capo, Acoustic and Electric Guitars, Single Handed Quick Change High Performance for Guitars, Ukulele, Banjo, Mandolin, Bass This capo is easy to use and very fast to change! Can even change keys during a song. A perfect is available for the necks and fingerboards of electric or acoustic 6- string guitars Professional capo built to last - built of lightweight high quality zinc alloy (aircraft grade metal) Quick-Change action allows for repositioning of the capo with only one hand No scratches ,No fret buzz ,High Quality ,High Performance Spring Tension clamps maintain intonation