Find out about our Elixir Specials! (Elixir Strings are only available for shipment to addresses in the United States, U.S. Territories & Possessions, APO/FPO destinations and Canada.) For 5-String and 6-String sets choose a four string set from the listing below and then add a high C and/or low B string from the single string section: NanoWeb Single Strings Not sure what length you need? This might help: Bass String Lengths by Manufacturer