Ernie Ball 2406 Ernesto Palla concert quality classical guitar strings are made of a solid nylon filament. It is similar to, but not the same as, the nylon used for fishing line. Silver fourth, fifth, and sixth wound strings are made of silver-plated copper wrapped around a nylon floss core.
Gauges: First .028, Second .032, Third .040, Fourth .030, Fifth .036, Sixth .042
Medium tension