Woodtone Country Series Acoustic Guitar Strings are gauged exactly halfway between lights (12/53) and mediums (13/56) to give you the perfect balance of tone and feel. This set of strings is also low tension which is easy on your guitar and on your fingers. We designed these strings to have a warm and natural wood tone for playing country music. This set of strings features a precision wound phosphor bronze wire that is drawn around a hexagonally shaped high-carbon steel core to maintain proper tension and balance across all strings. Each string is lightly coated to ensure maximum string life without sacrificing tone.