Seven sets of nickel wound strings for electric guitar, custom gauge 28. - Brand: Ernie Ball - Model: Custom Gauge 28 - Type: Nickel Wound Electric Guitar String - Quantity: 7 sets Purchased at various times, I'm selling off gauges I don't use! Some of the bags have faded, but they are unused. Since they have been stored for a long time, I've listed them as "Like New." Seven sets of Ernie Ball nickel wound electric guitar strings, gauge 28. Instant purchase OK! Thank you. Thank you for looking.