D'addario XSB45100
copy of Juego de Cuerdas eléctrica XS Nickel Super Light Plus 9,5-44

XS is breathing new life into coated strings. With its ultra-thin film coating on every wound string and unique polymer treatment on the plain steels, XS offers our highest level of protection for maximum life with an uncommonly smooth feel, making it the most innovative coated string ever created.