D'Addario EPS230 ProSteels Bass Guitar Strings, Heavy, 55-110, Long Scale Heavy gauging, an ideal combination of bright, booming tone and comfortable feel D'Addario's brightest and most magnetic bass strings offering harmonically rich, deep and penetrating tone 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 .055, .075, .090, .110