Elixir Electric Nickel Plated Steel Strings with OPTIWEB Coating give you the performance of a natural string that crisp tone natural feel and playable grip you know and lovewithout sacrificing the signature long-lasting tone life of Elixir Strings.Played for the same crisp tone as an uncoated stringOPTIWEB Coating provides a natural feelElectric guitar strings constructed with nickel-plated steel wrap wireOur coating technology protects against common corrosion and debris buildup extending tone life longer than any other brands coated or uncoated strings*Anti-Rust Plating on plain steel strings ensures longer tone life for the entire setWith less hassle and expense of frequent string changes spend more time making musicSPECIFICATIONS:7 String Light/Heavy Gauge10131726364659