Electric Nickel Plated Steel with Nanoweb Coating Light-Heavy 10-52 12077Elixir Electric Nickel Plated Steel Strings with NANOWEB Coating deliver the presence, punch, and personality of traditional electric guitar strings but with extended tone life. Only coated string brand to protect the entire string with an ultra thin coating, keeping gunk out of the gaps between the windings Extended Tone Life players report their tone lasts longer than any other string, uncoated or coated Consistent performance and tone ready to play