Known for their warmer, mellower tone and slightly textured feel, Pro-Arté Rectified strings feature rectified nylon trebles, ground using our proprietary centerless grinding technique. The result is roundness and dimension control that are unsurpassed, ensuring consistently perfect intonation. Complemented by our famous nylon core silver-plated copper wound basses, Pro-Arté Rectified sets are the epitome of classical warmth. Moderate tension strings are the lightest option in rectified treble sets. Features: - •\tSilver wound on nylon basses with clear rectified nylon trebles •\tModerate tension, the lightest available in the Classics series •\tRectified nylon trebles for unsurpassed intonation •\tEnvironmentally friendly, corrosion resistant packaging for strings that are always fresh •\tMade in the U.S.A. for the highest quality and performance •\tString Gauges: .027, .031, .039, .028, .033, .042