Wound with "Alloy 52?", White Bronze strings are magnetically active which makes them ideal for acoustic/electric applications. The material also resists corrosion to help players with high acidity and those that live in humid climates. This non-tarnishing material delivers an extra brilliant sound with a very long tone life. GHS strings are the music industry's choice whether you want a fat, bright tone, or a bluesy, warm & mellow tone. Before they leave the shop, each string is meticulously inspected by hand by quality assurance people. Gauges: .011; .014 ; WB20; WB30; WB38; WB48 .011; .014 ; .009; .014; WB20; WB26