The NS Capo is the product of an ongoing collaboration between famed product designer Ned Steinberger and J. D'Addario & Company. It employs a sleek, ultra-light design for fast and accurate one hand positioning on the guitars neck. Just turn the smooth, tactile dial to eliminate the string buzzing and enjoy perfect, in-tune performance. Lightweight aluminium adds virtually no weight to the guitars neck when in use. Ultra-light aerospace grade aluminium One hand operation Fast micrometer screw assures perfect pressure for buzz-free, in-tune performance at every fret. A patent-pending Ned Steinberger design. Designed for 6- or 12- string guitars.