D'Addario EJ84M Gypsy Jazz Acoustic Guitar Strings, Loop End, Medium, 11-45 EJ84M loop end gypsy jazz acoustic guitar strings are designed and gauged for rhythm and strumming patterns associated with "Django", jazz-style guitar. Silver-plated Copper is wound on a high carbon steel core, delivering a warm, projecting tone optimal for any Gypsy Jazz style guitar. String Gauges: Plain Steel .011, .015, Silver-plated Copper Wound .024, .029, .035, .045