D'Addario EJ73 Light Loop End Mandolin Strings .010-.038wEJ73 is a light gauge set of Phosphor Bronze mandolin strings. Since D'Addario introduced Phosphor Bronze guitar strings in 1974, they have been synonymous with warm and well balanced acoustic tone. 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