Standard-tension nylon 6 string set for classical guitar that contains trebles KF ALLIANCE and round wound CORUM basses, and offer larger possibilities in sound modulation and expressiveness, ease of playing and sustained sound with higher volume level. Plain trebles are made of well-known composite monofilament (so-called carbon strings), basses have polished fine silver winding and keep the same flexibility as unpolished strings. Strings offer rich, direct and accurate sound with incredible clarity and improved speed of the response. Gauges: .024 - .042.