Daddario XTE1149 Medium, String Set for Electric Guitar, String thicknesses: .011, .014, .018, .028, .038, .049, Successor to the well-known EXP115 strings, Round wound, Thickness: Medium tension, Material (winding): Nickel plated steel, Microscopically thin, moisture-repellent coating on all 6 strings does not affect the tone or touch, Made of ""HIGH CARBON NEW YORK STEEL"" in combination with ""FUSION TWIST"" for attaching ball ends, these strings provide extremely high break resistance and tuning stability, Made in USA