"ESXL110 strings are constructed with ball ends on both ends of the strings for use on double ball-end guitars. They are precisely engineered and wound to Steinberger specifications .- Double ball end design, manufactured to Steinberger specifications- Round wound with nickelplated steel for distinctive bright tone- Environmentally friendly, corrosion resistant packaging for strings that are always fresh- Made in the U.S.A. for the highest quality and performance- String Gauges: Plain Steel .010, .013, .017, Nickel Wound .026, .036, .046,- Environmentally friendly, corrosion resistant packaging for strings that are always fresh"