Ernie Ball Slinky Cobalt Flatwound Short Scale bass strings combine the smooth feel of traditional flatwound strings with the power of cobalt. Featuring a cobalt ribbon wrap, cobalt underwraps, and an optimal core-to-wrap ratio, these new Short Scale Flatwounds are the first flatwound strings to provide the feel and tone of a roundwound string. Designed for 30" to 30.5" scale basses, they are 48" long with a taper at 32.5". Gauges: .045, .065, .085, .105