Thomastik-Infeld Strings for Acoustic Guitar Plectrum Acoustic Series - Set (AC210)PLECTRUM BRONZE strings are characterised by their combination of lower total tension and their different combinations of flat wound and round wound strings. The wound strings have a silk inlay for precise, balanced overtones and a beautiful almost classic, warm sound. easy to play like a set of good jazz strings Becasue of the low, evenly distributed tension, PLECTRUMs can significantly extend the life of older guitars with thin tops or other age