These Ernie Ball Stainless Steel strings, here in a Hybrid Slinky gauge (9-42), will give you longer string life, brighter, crisper tones and a great feel. If you need that super bright, sharp tone then these strings are perfect! The plain (treble) ones are tin plated, high carbon steel.This gauge is a mixture of both light and medium which gives amazing playability for those nice bends and vibrato but at the same time allowing good resistance for strumming, rhythm work and even down tuning! They're perfect for Blues, Rock, Jazz and much more!The individual string thicknesses are: 09, 11, 16, 26, 36, 46. These are for sale with FREE next day UK delivery so get them quick and hear the awesome stainless steel tone today!