8-String electric guitar strings constructed with nickel-plated steel wrap wire played for the same crisp tone as an uncoated string OPTIWEB Coating provides a natural feel coating technology protects against common corrosion and debris buildup, extending tone life Longer than any other brand's coated or uncoated strings (Elixir Strings player survey) anti-rust Plating on plain steel strings ensures longer tone life for the entire set light Gauge: .010 .013 .017 .030 .042 .054 .064 .074.