These Vega 5 string bluegrass banjo strings by Martin have a nickel wound 4th string and silvered steel plains. They are gauged .009, .010, .013, .020w, .009. Great sounding strings for 5-string banjos and any style of play. String set model number is V700. Since 1889 the name Vega has been synonymous with fine banjos. These strings are new and boxed.