D'Addario Pro Arte Hard Tension Silverplated Wound Clear Nylon Classical Guitar Strings. Pro-Arte's are preferred by players and guitar makers for their excellent tone, precision, and consistency. Each Pro Arte treble string is measured 200 times by a sophisticated, computer-controlled laser system that performs consistency and quality control checks while determining the string's exact playing tension.

Gauges: 28.5, 32.7, 41, 30, 36, 44