Dunlop Picker's Pal Guitar Capo
Dunlop's Picker's Pal guitar capo works on all guitars: six string, twelve string, classical, nylon string, acoustic and electric guitars.... The pressure bar adjusts to all fretboard radii, from flat to short radius. The cam action lever applies the clamping force to the center of the neck, so even clamping pressure is applied to all the guitar strings, plus it lets you change capo positions quickly. Made from quality materials and finished in black, it looks good on your guitar, and works just as well as it looks.
It also makes a great gift.