GHS A137 INT SOUNDHOLE MIC Weve perfected the core-to-cover ratio for increased brightness and flexibility, while doing away with harsh overtones. The cover wrap gives you a high end shimmer that will last for a long time.Introducing our brand new Nitro-Pack singles! Each single string is sealed in a nitrogen environment, eliminating all oxygen, in a tear-resistant package. Whether you use one string or the whole set, the Nitro-Pack guarantees straight from the factory freshness!ABOUT GHS STRINGSGHS Strings are manufactured in a state-of-the-art, climate controlled facility using precision equipment and only the purest of materials. When you buy GHS strings you get quality, consistency, lasting intonation and superbly harmonious sound! GHS Strings – The String Specialists since 1964.625 Set: 012(2)-016(2)-B26/010-B34/013-B44/018-B52/B30