These capos work like a charm. Whether you are rockin out in Madison Square Gardens with Poison or if you are at grandma's house singing songs to your cousins. You won't miss a key change in between songs! These capos are easy to use and very fast to change! A perfet fit for the necks and fingerboards of classical guitars, the original Quick-Change is a snap to reposition between frets using just one hand, or to "park" on the head stock. This capo is used by more guitarists than any other capo. The quick change design allows for fast and easy key change with the use of only one hand. Don't wait until your next gig, order one today!