RotoSound Acoustic Bass Guitar Phosphor Bronze 5 String, .045 - .130, RS445LDstar rating 3BilloAugust 24, 2009This may not be routine, but the set I received seemed aged in the package. They did not have the clean finish I expect on new strings. Their sound on a Michael Kelly 5-string is bold and powerful, but not quite articulate. The little brightness they had at the beginning is gone now after only a couple months.