Signature long scale 4 string set for electric bass guitar from Swing Bass 66 series that is was specifically designed for Billy Sheehan, American bassist. It features a slightly lighter ‘G’ that provides a more even string-to-string tension across the neck and makes bending easier, as well as heavier ‘E’ string that not only further ensures better string-to-string tension but also eliminated string “flap” or “rattle” and makes a tighter low end with increased mass for more volume in the lower register. Round-wound strings are made from unique stainless steel that is combined with a highly secretive manufacturing process, and provide a responsive feel and very vibrant tone. All Rotosound strings are manufactured in England. Gauges: .043, .065, .080, .110.