Description de chez Thomann : Cleartone Nickel-Plated Bass Strings - Coated Bass String Set, Medium (045-105), Coated strings for electric bass, 4-string set, Medium set, gauges .045", .065", .085", .105", nickel-plated steel, 36% louder than other Coated strings, 3-5 x longer life than uncoated strings, no corrosion due to EMP treatment, coating does not flake, made in USA