Product Description Ernie Ball Mighty Slinky electric guitar strings sit between the popular Super Slinky and Extra Slinky gauges, providing a fast, light tension across all six strings. These electric guitar strings are precision manufactured to the highest standards and most exacting specifications to ensure consistency, optimum performance, and long life. Mighty Slinky wound strings are made from nickel-plated steel wire wrapped around a hex-shaped steel core wire. The plain strings are made of specially tempered tin-plated high-carbon steel for that iconic Slinky feel and tone that players have relied on for decades. Mighty Slinky gauges are .0085 .011 .015 .022w .030 .040. From the Manufacturer Mighty Slinkys sit between the popular Super Slinky and Extra Slinky strings while providing a fast, light tension across all six strings. Gauge combination: 8. 5, 11, 15, 22w, 30, 40.