New 24+ 9-42 Electric Guitar Strings Ernie Ball
New 24+ 9-42 Electric Guitar Strings Ernie Ball. Cobalt strings' special iron/cobalt blend attracts the magnets in your pickups better than any other alloy. Ernie ball is the pioneer of rock and roll guitar strings. Ernie ball cobalt guitar strings are made of a new alloy formulation that gives you higher output, better sound, and longer life. Nickels are some of the most popular of the ernie ball slinky guitar strings.