Pro-Arte strings are our the world's best selling and D'Addario's premium classical guitar strings. - Pro-Arte treble strings are sorted by a sophisticated computer-controlled laser machine which performs diameter/tension measurements and quality checks, insuring true sounding, precise trebles in every set.
- Pro-Arte basses are wound using silverplated copper on a multi-filament nylon core for consistent, warm-yet-projecting tone.
- Extra hard
- Gauges: 29-33.3-41.6-30-36-45
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