The Planet Waves NS Classical guitar capo was designed specifically for classical guitars with flat fretboards with assistance from Jim D'Addario and Ned Steinberger. Operable with just one hand, you can dial in the exact tension of the NS Classical capo using a patented micrometer adjustment to get clear, singing notes from your guitar without putting too much force on the strings or neck. This clever design and superb construction from aircraft-grade aluminum will keep your guitar buzz-free and in tune.