Sadowsky Blue Label bright nickel strings for electric bass - 4-string set - improved midrange presence with less brightness and lower tension feel - warmer than stainless steel but brighter than other nickel strings - smoother feel to the fingers than stainless steel - designed for top-loading bridges, not recommended for through-body stringing - 040-100 set - gauges .040", .060", .080", .100" - bright nickel wrap - hex core