Check the listing for details. D'Addario EJ80 Phosphor Bronze Octave Mandolin Strings Medium 12-46 J80. Condition: New. Listed at 13.95 USD. EJ80 OCTAVE Mandolin Strings Phosphor Bronze Medium 12-46 D'Addario's EJ80 octave mandolin strings are designed for use with octave mandolins of various scales. The unwound strings are made from plain steel and the wound strings are phosphor bronze. D'Addario EJ80 Phosphor Bronze strings are precision wound with corrosion resistant phosphor bronze onto a carefully drawn, hexagonally shaped, high carbon steel core. The result is long lasting, bright sounding tone with excellent intonation. EJ80 Designed for use with octave mandolins of various scalesEJ80 Loopend construction for universal fitEJ80 Preferred for its warm, bright, and well balanced acoustic toneEJ80 Made in the U.S.A. for the highest quality and performanceEJ80 String Gauges: Plain Steel .012/.012, Phosphor Bronze Wound .022/.022, .032/.032, .046/.046EJ80 Octave Mandolin Strings