Cleartone Grand Light Phosphor Bronze Acoustic Guitar Strings (13-53) Grand Light Phosphor Bronze Acoustic Guitar Strings (13-53) Gauges: 13-17-25-33-42-53 The Grand Light strings have a uniquely balanced voice as it uses the wound phosphor bronze strings from Cleartone's Light set for a warm tone that stress less on your fingers, while using the plain steel string sizes from their Medium set to give you more high-end output and clarity It all comes together in seamless fashion with the wound D from the Custom Light set to create a very pleasing well-rounded sound overall Cleartone acoustic strings start off with premium phosphor bronze construction The award winning and patented Cleartone Treatment is next