Ernie Ball 2618 Magnum Slinky nickel wound electric guitar strings give your guitar a balanced and rich tone ideal for rock and blues. The nickel-plated steel wrap wire is precision wound onto a tin-plated steel hex core for a bright, crisp sound with rich midrange and clarity. The specially tempered plain strings are also tin-plated, providing a smooth feel and consistent performance. The dual pack ensures you always have a backup set on hand.