D'Addario EJ75 Phosphor Bronze Mandolin Strings, Medium/Heavy, 11.5-41 D'Addario's heaviest gauge mandolin set, ideal for hard driving, percussive playing styles Loop end construction for universal fit Phosphor Bronze for long lasting, warm and bright tone Made in the U.S.A. for the highest quality and performance String Gauges: Plain Steel .0115/.0115, 016/.016, Phosphor Bronze Wound .026/.026, .041/.041 D'Addario's heaviest gauge mandolin set, ideal for hard driving, percussive playing styles^Loop end construction for universal fit^Phosphor Bronze for long lasting, warm and bright tone^Made in the U.S.A. for the highest quality and performance^String Gauges: Plain Steel .0115/.0115, 016/.016, Phosphor Bronze Wound .026/.026, .041/.041