EJ83L ball end gypsy jazz acoustic guitar strings are designed and gauged for rhythm and strumming patterns associated with "Django", jazz-style guitar. D'Addario Gypsy Jazz strings are specially designed for the "Django" style. Silver-plated Copper is wound on a high carbon steel core, delivering a warm, projecting tone optimal for any Gypsy Jazz style guitar. • Designed and gauged for "Django", jazz-style guitars. With ball end • Warm, projecting tone • Corrosion resistant packaging for strings that are always fresh • Made in the U.S.A. for the highest quality and performance • String Gauges: Plain Steel .010, .014, Silver-plated Copper Wound: .023, .026, .034, .044