D'Addario - EJ31 Classics Rectified Classical Guitar Strings - Hard Tension

Silver wound on nylon basses with clear rectified nylon trebles
Hard tension, the heaviest tension available in the Classics series
Rectified nylon trebles for unsurpassed intonation
Environmentally friendly, corrosion resistant packaging for strings that are always fresh
Made in the U.S.A. for the highest quality and performance