Ernie Ball 9-String Slinky Nickel Wound ELECTRIC Guitar Strings 9-105 P02628Ernie Ball Nickel Wound Electric Guitar Strings are made from nickel plated steel wire wrapped around tin plated hex shaped steel core wire. The plain strings are made of specially tempered tin plated high carbon steel producing a well balanced tone for your guitar. Gauges . 009, . 011, . 016, . 024, . 034, . 046, . 064, . 080, . 105. Precision wound with nickel plated steel High carbon steel hex core Rich balanced tone Signature Slinky feel