Description Ernie Ball Cobalt Slinky 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.  ERNIE BALL SUPER SLINKY COBALT ELECTRIC GUITAR STRINGS 9-42 GAUGE Gauges .009, .011, .016, .024, .032, .042 ERNIE BALL HYBRID SLINKY COBALT ELECTRIC GUITAR STRINGS 9-46 GAUGE Gauges .009, .011, .016, .026, .036, .046 ERNIE BALL REGULAR SLINKY COBALT ELECTRIC GUITAR STRINGS 10-46 GAUGE Gauges .010, .013, .017, .026, .036, .046 ERNIE BALL POWER SLINKY COBALT ELECTRIC GUITAR STRINGS 11-48 GAUGE Gauges .011, .014, .018, .028, .038, .048 ERNIE BALL SKINNY TOP HEAVY BOTTOM SLINKY COBALT ELECTRIC GUITAR STRINGS 10-52 GAUGE Gauges .010, .013, .017, .030, .042, .052 ERNIE BALL NOT EVEN SLINKY COBALT ELECTRIC GUITAR STRINGS 12-56 GAUGE Gauges .012, .016, .024, .032, .044, .056