D'Addario EJ88T sets are designed for use with tenor ukuleles utilizing our exclusive Nyltech material. This set is optimized for standard GCEA tuning. Optimized for Tenor Ukuleles tuned to standard GCEA tuning Exclusive Nyltech material for traditional Ukulele tone Preferred for warm, gut-like overtones String Gauges: Nyltech .026, .032, .038, .028 Made in the U.S.A. for the highest quality and performance