Trimmer Head / Speed Feed 375 Pack Size:1 SHINDAIWA 78890-21000, SHINDAIWA 78890-18000, SHINDAIWA 999442-00902 BYNORM 385-284, J. THOMAS 28820-08000, J. THOMAS SH-876, OREGON 55-294, OREGON 55-264, ROTARY 13375 SHINDAIWA TR195"s and 22T 8mm x 1.25 LHM , Arbor sizes included: , 10mm x 1.25 LHF , Recommended for straight shaft trimmers , Smooth and durable, the large bottom cover taps on ground to advance line and allows head to glide while trimming , Large, durable, split eyelets enhance line life , 7mm x 1.00 LHM , 4" trimmer head , Inner wall reduces amount of dirt inside head , Uses .080", .095" or .105" diameter line , Ideal for consumer amd commercial use , 10mm x 1.00 LHF , 8mm x 1.25 LHF , Easy to feed line , Fits most straight shaft string trimmers manufactured by Husqvarna, Red Max, Shindaiwa and Stihl , Spool holds about 10" of .095" line , Includes 10" of .095" trimmer line