Check the listing for details. D'Addario EHR370 Half Rounds Medium 11-49 Electric Guitar Strings. Condition: New. Listed at 12.75 USD. D'Addario EHR370 HALF ROUNDMEDIUM Gauge 11-49 ELECTRIC GUITAR STRINGS EHR370's combine the playability of a traditional 11-49 set with the benefits of an exclusive "Half Round" manufacturing process.D'Addario Half Rounds Electric Guitar Strings are round wound with stainless steel and then precision ground leaving the outer surface smooth and "semi flat." The result is a string with the tone and tension characteristics of round wound strings, with a smoother feel, similar to flat wound strings.D'Addario's popular medium gauging with an exclusive semi-flat surfaceCenterless ground stainless steel delivers round wound tension with a flatwound feel Environmentally friendly, corrosion resistant packaging for strings that are always fresh Made in the U.S.A. for the highest quality and performance EHR370 String Gauges: Plain Steel .011, .014, .018, Stainless Steel .028, .038, .049