Ernie Ball's Super Slinky 7-string nickel wound electric guitar strings are made with comfort in mind. A lighter gauge than other Ernie ball 7-string sets, the Super Slinky increases playing ease and comfort. Guitarists at Sweetwater like these strings for their rich sound and comfortable feel. Made with a nickle-plated steel wire wrapped around a tin-plated hex core and specially tempered tin-plated plain strings, the Ernie Ball Super Slinky 7-string nickel wounds provide an even and balanced tonal quality to your music