John Pearse® Classical Guitar Thomastik John Pearse Strings Silver Plated/Nylon Wound Ball End .016 - .043, THOstar rating 5Bruce FogelOctober 12, 2009For classical, flamenco, folk, & popular styles of music. These are the most amazing treble strings out there. Yes they are bright, but that's what makes them so versatile. With a rope core covered in nylon; this is the most unique string on the market. So thanks, Thomastik-Infeld for creating these strings.