Dual line, manually-fed trimmer head for straight-shaft trimmers. Holds line of: .080", .095", and .105". Commercial use. For 20-35 cc engine trimmers. Can be loaded 2 ways (both without any tools needed): 1) By taking it apart (very similar to the T35 head) and reloading the spool. 2) From the outside - you can reload it by having two fixed length lines and winding these into the spool.