GHS PHOSPHOR BRONZE ACOUSTIC STRINGS Our GHS Phosphor Bronze acoustic guitar strings feature a special, durable alloy of copper, tin and phosphor wind over a hex core. This combination delivers a long-lasting, rich, and bright tone. Along with a redesigned core-to-cover ratio, this set gives increased brightness and flexibility without all those harsh overtones. We've perfected the core-to-cover ratio for increased brightness and flexibility, while doing away with the harsh overtones. The cover wrap gives you a high end shimmer that will last for a long time. GHS Phosphor Bronze Acoustic Strings are ideal on all types of acoustic guitars. GHS NITRO-PACKS - KEEPS YOUR STRINGS FRESH! With our Nitro-Packs we’ve eliminated the oxygen and sealed in nitrogen to insure the utmost line of defense against corrosion and oxidation for each individual string. GHS has implemented the Nitro-Pack into every guitar sized (4” square string envelope) package in the spring of 2016. You deserve strings that are as fresh and brand new as the day they were sealed, whether you open them immediately, or after keeping them in a gig bag for months. Foil Packs - Extra Layer of PROTECTION GHS Foil Packaging adds an extra layer of protection. Available in Multi-Packs GHS Phosphor Bronze are also available in economical multi-packs. Ideal on ALL Acoustic Guitar Types Your guitar will love you for it. Advanced winding techniques, state of the art production and high grade material is the HALLMARK of the GHS Phosphor Bronze line. Bring out the best in your tone! Since 1964, we've been winding guitar strings in the same southwest corner of Michigan that gave birth to Gibson Guitars. Though based in Battle Creek, we are global, but our values remain rooted in midwestern soil. We are fiercely independent – we are no-nonsense perfectionists believing in hard work, craftsmanship, and the power of music.