D'Addario Tenor guitar strings are made specifically for steel string Tenor Guitars. J66 Tenor Guitar strings are made from Plain Steel and 80/20 Bronze wound strings which provide bright, projecting acoustic tone.

Made specifically for steel string Tenor Guitars
    Distinctive bright tone and excellent intonation
    Environmentally friendly, 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, 80/20 Bronze Wound .022, .032