The black NS Ukulele Capo Pro from Planet Waves is made from aircraft-grade aluminum and is designed for use with all ukuleles. With its patented micrometer adjustment mechanism, the capo can be dialed in with the ideal amount of tension needed for clear ringing notes without excessive force, resulting in a buzz-free performance at every fret. This greatly reduces the need to re-tune your uke during and after capo use. The lightweight unit features a sleek construction that can withstand the rigors of on-the-road wear and tear, while adding very little additional weight or obstruction to the instrument. NS Series capos were created by famed product designer Ned Steinberger in collaboration with Jim D'Addario and Planet Waves.