D'Addario ENR71M Half Round Bass Guitar Strings, Regular Light, 45-100, Medium Scale 45-100 gauged set with the benefits of an exclusive "Half Round" manufacturing process Brightness and tension similar to standard round wound strings with smoother feel Fits medium scale basses with a string scale length of up to 34 inches Made in the U.S.A. for the highest quality and performance String Gauges: Wound .045, .065, .080, .100