The Ernie Ball 7 String Super Slinky electric guitar strings are a great match for your 7 string guitar. If you're playing metal then these will give you amazing shredding playability! Down tune your guitar and these will play fantastically, almost effortless! These are Nickel wound and will produce a nice, bright and balanced tone. They're tight, dynamic and extremely responsive which is exactly what you need when playing those heavier riffs and chuggs!The individual thicknesses are: 11, 14, 18p, 28, 38, 48, 58. They're also for sale with FREE next day UK delivery so get rocking in no time!