Nickel-plated steel strings with optiweb coating.

• Only coated string brand that protects the entire string with an ultra-thin coating that keeps dirt and debris out of the space between the windings.
• Extended life - musicians report that Elixir maintains tone longer than any other string, uncoated or coated
• Smooth feel that improves playability
• Reduced finger noise - good for both performance and studio recording
• Anti-rust coated plain steel strings resist corrosion, ensuring a longer life for the entire set
• Spend more time playing music with less hassle and expense of frequent string changes.