GHS SILK & BRONZE - STRING SET FOR ACOUSTIC GUITAR Gauge: 012/016/024/032/042/054 Type: Roundwound Material: Copper-Tin-Phosphor Alloy GHS SILK & BRONZE: The special blend phosphor bronze alloy is wrapped over a silk and steel core, providing a warm tone with a sweetness to it. The lower tension of the strings is a joy under fingers. GHS Silk and Bronze acoustic guitar strings feature a unique silk and steel core wound with Phosphor Bronze cover wire to create a warm, mellow tone with a soft feel. Silk & Bronze strings are ideal for live performances and have impressive sustain and low finger noise for the studio. PLAY WITH THE BEST GHS is one of the best-selling strings in the world. USA made according to the latest technology.