Fits Models: Ryobi 130R, 135R electric trimmers, 700R, 710R, 720R, 740R, 750R, 760R, 765R, 766R, 770R, 920R,970R, CS720R, SS720R, Singer GT2815, GTS2816 and GTE2818Yard Machines Y28 and 2800M
Specifications: For 3/8" shaft diameter For 3/8" shaft diameterFor dual line modelsIncludes trimmer line
Additional Information: Use with 385-356 Trimmer Head Spool W/ Line 385-356 Trimmer Head Spool W/ Line, Use with 385-906 Trimmer Head Bump Knob 385-906 Trimmer Head Bump Knob
