Features:1. String uses nickel-plated steel wire wrapped around tin-plated, hex-shaped, steel core wire.2. Slinky strings provide vibrant, bright, lasting tone and reduce fret wear.3. It is very suitable for those who like the thick rhythm of rock or blues.Description:Ernie Ball Super Slinky Electric Guitar Strings 009 010 Nickel Wound 6 Strings Guitar For Electric Guitar AccessoriesGuitar Strings Description:Brand:Ernie BallType: electric guitar stringsMaterial:galvanized high carbon steel,nickel woundModel:2220,this strings are thicker and provide a powerful sound for rockers and blues guitarists who like heavy rhythms.Model:2221,Suitable for guitars with standard fixed bridges.Model:2222,2222 is a combination of 2221 and 2223, Combining the gentle-ness of 09 string,6 string provide a strong bass, you can also use 6 string down string.Model:2223,suitable for electric guitars with vibrato systems,most of these electric guitars are factory defaulted to 09-42 strings.Model:2215,Suitable for players who need heavy bass strings and high-pitched strings for a regular solo feel.Package Included:1 * stringNotes:1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.