The Jim Dunlop 83CB Trigger acoustic capo provides positive, accurate clamping for curved fingerboards. Made to provide scratch-free performance for your guitar, the low-profile 83CB is designed to stay clear of your fingers. When you need quick key changes without re-tuning, a quality capo is a must, and Dunlop capos are made to do the job right. This unit is constructed of quality aircraft aluminum for reliability and light weight. If you want a great-performing capo that's made to last, choose the Dunlop 83CB.