Ernie Ball 2730 Slinky Cobalt 7-String E-guitar strings

7-string electric guitar 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 Slinky guitar strings are also soft and silky to the touch, making string bending a breeze. Gauges: .010, .013, .017, .030, .042, .052, .062