D'Addario EXL140 Light Top/Heavy Bottom Nickel Electric Guitar Strings Created for versatile players, D'Addario EXL140's feature nickel plated steel round wrap over a hex core, to provide excellent magnetic characteristics for single coil and dual coil pickups. Nickel plated steel wire is precision wound over steel hex cores, using computer controlled winding machines to monitor wrap speed and tension. The result is an electric guitar string with precise intonation and unmatched consistency, set after set. Though round wound, D'Addario EXL140's have a smooth feel, which is easy on the fingers and reduces fret wear. This light top (treble) and heavy bottom (bass) string set is easy to bend for blues and rock, and they allow greater range of expression and creativity. These strings can produce plenty of volume and have a full spectrum tone, form deep basses and warm mids to very bright, ringing trebles. They come in an environmentally friendly, sealed inner package to keep them fresh. Diameters: .010 .013 .017 .030 .042 .052 inches Available for Order