Classic N Series guitar strings like this pack of CF 127 strings from Thomastik-Infeld are heavy-duty nylon strings. The bass E and A are chrome steel flatwound. The treble strings are made of selected nylon. Classic N Series are easy to play and give the player a high-quality classical guitar strings at a budget price.

This is a Normal Tension set with gauges: .027-.031-.039-.030-.035-.045.