Breathe life into an overly mellow mandolin! The unique core-to-cover ratio combines with the copper/zinc alloy helps retain the richness of bronze and add a crisp sparkle to the finish.Introducing our brand new NitroPack 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. 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.PF250 Set: LM11 (2) - LM16 (2) - MN24 (2) - MN38 (2)