D'Addario ENR71 Half Round Bass Guitar Strings, Regular Light, 45-100, Long 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 long scale basses with a string scale length of up to 36 1/4 inches Made in the U.S.A. for the highest quality and performance String Gauges: Wound .045, .065, .080, .100