D'Addario EJS74 mandolin strings are great for electric or acoustic mandolin playing. JS74 mandolin strings are wound with nickel-plated steel, known for its distinctive super-bright tone and dynamic projection. D'Addario mandolin strings are trusted by legends like David Gris man, Ricky Skaggs, Ronnie McCoury, Doyle Lawson, Rhonda Vincent, Mike Marshall, Adam Steffey, and more, for their natural acoustic tone and reliable performance. They are made from the highest quality plain steel, stainless steel, nickel plated steel and phosphor bronze and are available in a wide variety of gauges.