These Bass Guitar / Bass Cello (or Omni Bass) A strings are made to fit all standard 34-35 inch scale bass guitars. They are polished smooth with a rich bass tone and a clear, singing upper register. Designed in partnership with Ned Steinberger and NS Design, the D'Addario NS Electric Strings can be used on electric instruments to bring out the best in them. Each string is designed to enhance the expressive range of tone sought after by the most discerning players. The set consists of regular tuning strings (G, D, A, E). Additional low B and high C are available as single strings.