Ernie Ball 7-String Cobalt Slinky Power guitar string set. Engineered to maximize output and clarity, Ernie Ball Cobalt Slinky guitar strings are the latest innovation in string technology.Seeking to provide guitarists and bassists with a new voice, Cobalt strings provide an extended dynamic range, incredible harmonic response, increased low end, and crisp, clear highs. Cobalt provides a stronger magnetic relationship between pickups and strings than any other alloy previously available. Cobalt Slinkys are also soft and silky to the touch, making string bending a breeze.Gauges 11, 14, 18, 28, 38, 48, 58.
