Stringjoy Light Top / Heavy Bottom Gauge (45-130) 5 String Long Scale Nickel Wound Bass Guitar StringsStringjoy bass guitar strings are roundwound from American nickel plated steel windings and hexagonal steel core wire. They have a full, resonant low end and a medium top endnot too bright, not too mellow giving these strings a balanced sonic profile with optimum output. Our Long Scale Nickel Plated Steel Roundwound bass string sets have a taper at 37. 1 from the ball end. This is the ideal taper length for all 34 and most non string thru 35 scale