ENR72's combine the playability of a 50-105 set with the benefits of an exclusive "Half Round" manufacturing process. This set is fit for long scale basses with a string scale length of up to 36 1/4 inches. D'Addario Half Round bass strings are wound with pure nickel, then precision ground, leaving the outer surface smooth and semi-flat while retaining the flexibility of round wound strings. D'Addario's exclusive heat treating process ensures that Half Rounds retain their round wound brightness and sustain. 50-105 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 .050, .070, .085, .105