This is a bulk 12-pack of C. B. Gitty brand .013 inch (13-gauge) plain steel steel (unwound) ball-end guitar strings, proudly manufactured in the United States specifially for C. B. Gitty Crafter Supply. These are high-quality guitar strings perfect for use on guitars, cigar box guitars and any other instrument that uses a ball-end-style string. Nominal string length is 40 inches. Strings come packaged in clear sealed poly sleeves, which can be easily hung from a nail in your shop, or laid flat on a shelf.