Included items: 2 main units. Elixir strings use a special and advanced polymer coating technology to protect the strings from sweat, body oils, and dirt, preventing corrosion. The ultra-thin Nanoweb coating provides a bright and powerful sound similar to uncoated strings. It also features moderately suppressed finger noise. Light gauge (.010 .013 .017 .030 .042 .054 .064 .074)