2221 Nickel Regular Slinky Electric Guitar Strings 3 Pack. Three-pack of Ernie Ball 2221 Regular Slinky Electric Guitar Strings. Gauges 10-13-17-26-36-46. Ernie Ball 2221 Regular Slinky Electric Guitar Strings feature nickel-plated steel wire wrapped around tin-plated, hex-shaped, steel core wire. Slinky strings provide vibrant, bright, lasting tone and reduce fret wear. This weight balances maximum response from your pickups with playability and bendability. Ernie Ball replacement strings are precision manufactured to the highest standards and most exacting specs to assure consistency, optimum performance, and long life. Ernie Ball is the pioneer of rock and roll guitar strings. Jimmy Page, Eric Clapton, Steve Vai, and Slash are among the long list of Slinky players.