Medium 4 string set for electric bass guitar from NEON series with super bright K3 multi colour-coating that delivers clear, bright and musical sound, and revolutionizes the learning process with the benefits of colour-associated teaching. Strings are bright in daylight and under stage lighting, 100% black light reactive and they glow strongly under UV lighting. They last longer as any other coated strings – three to four times as long as uncoated strings, but sound as good as uncoated strings. Strings are made with steel round cores and special multi-colour nickel-plated steel windings. Gauges: .045, .065, .085, .105.