Remake of the legendary original strings that OPTIMA (back then called MAXIMA) produced for the famous RICKENBACKER basses. Those strings were not available for many years because Rickenbacker used another producer. Now back in shops due to constant demand.;Pure Nickel flatwound, polished;Round core with silk insert for more flexibility and softer tension;Smooth and comfortable to play;Long scale 34" = 88 cm;.045, .057, .077, .100;