Very high-tension 6 string set for classical guitar that contains trebles made of rectified nylon, characterized by a distinctive unpolished finish, and polished silver-plated copper-wound basses. Set delivers overall consistent playing feel and premium quality strings. Because of the texture of rectified nylon, treble strings are unusually controllable with regard to vibrato and stability, and their grittiness contributes to a lessening of the high overtones. They offer clear tone, while basses offer warm and soft sound with strong overall tone. Gauges: .029, .033, .041, .030, .036, .045.