Ernie Ball calls these singles Nickel Wound and they are. They're just not Pure Nickel, but are actually Nickel Plated Steel. Click here for more information on Ernie Ball Electric Wound Strings. Ernie Ball .018 Nickel Wound Single String $1.10 Ernie Ball .020 Nickel Wound Single String $1.10 Ernie Ball .022 Nickel Wound Single String $1.10 Ernie Ball .024 Nickel Wound Single String $1.10 Ernie Ball .026 Nickel Wound Single String $1.10 Ernie Ball .028 Nickel Wound Single String $1.10 Ernie Ball .030 Nickel Wound Single String $1.20 Ernie Ball .032 Nickel Wound Single String $1.20 Ernie Ball .034 Nickel Wound Single String $1.20 Ernie Ball .036 Nickel Wound Single String $1.20 Ernie Ball .038 Nickel Wound Single String $1.20 Ernie Ball .040 Nickel Wound Single String $1.30 Ernie Ball .042 Nickel Wound Single String $1.30 Ernie Ball .044 Nickel Wound Single String $1.30 Ernie Ball .046 Nickel Wound Single String $1.30 Ernie Ball .048 Nickel Wound Single String $1.30 Ernie Ball .050 Nickel Wound Single String $1.50 Ernie Ball .052 Nickel Wound Single String $1.50 Ernie Ball .054 Nickel Wound Single String $1.50 Ernie Ball .056 Nickel Wound Single String $1.50 Ernie Ball .058 Nickel Wound Single String $1.50 Ernie Ball .060 Nickel Wound Single String $2.00 Ernie Ball .062 Nickel Wound Single String $2.00 Ernie Ball .064 Nickel Wound Single String $2.00 Ernie Ball .066 Nickel Wound Single String $2.00 Ernie Ball .068 Nickel Wound Single String $2.00 Ernie Ball .070 Nickel Wound Single String $2.00