Made In USA, Sonora Strings SN42 Requinto Black Nylon Nickel Wound Cuerdas Requinto, The Quality of Sound - (Two Sets) :|: Sonora Strings - Produced in the USA :|: Crystal clear and warm sound with a fluid tone :|: Requinto string life, gently wipe them with a dry cloth. :|: MADE IN USA :|: TWO SETS - Black Nylon