Optima 2409CB UNIQUE Studio Bass GOLD Strings, 6-string .030 .045 .065 .085 .105 .130 - Set / E-Bass 6-string 24 Carat Gold PlatedRoundwoundExtremely flexible + Crisp, crystal-clear toneHexagonal coreLong Scale 88 cmOPTIMA UNIQUE Studio Bass GOLD Strings - The crystal-clear sound, the soft feeling as well as the warm distinctive overtones during the prolonged sustain mainly even in the highest pitches, make this string really unique. Theoptimumfor your bass sound, whether live or in the studio.