D'Addario EFW74 Flat Wound Phosphor Bronze Loop Mandolin Strings 8 strings 11-39EFW74 is a medium gauge set of flat wound mandolin strings. Flat wound mandolin strings deliver a smooth feel and full tone preferred by classical, jazz, and bluegrass mandolin players. Trusted By The Pros For years professional players like David Grisman and Ricky Skaggs have been relying on the consistency and performance of Phosphor Bronze mandolin strings as a complement to their songwriting. D''Addario mandolin sets are made in the United States