Lower octave F, A-model (loop or brass grommet end), wound.Winding length is optimized for Oscar Schmidt OS73 models. (See Details section for more info on A-model strings.)

Replacing a grommet-end string? These loop-end strings work fine, just as strong.

NOTE: Oscar Schmidt no longer provides single replacement strings. We are replacing them with Schreiber strings – handmade in USA!