Includes:(Like it shows in the picture) 1x Trimmer Head M10X1.25 1x 7mm x 10mm (LH) Mounting Stud (Gold) 1x 8mm x 10mm (LH) Mounting Stud (Silver) 1x 8mm x 3/8-24 (RH) Mounting Stud (Black) 1x 10mm x 1.0mm LH Bushing (Green) 1x 10mm x 1.25 LH Long Bushing (Silver) 1x 3/8-24 RH Bushing (Black) 1x Spacer V376001850 Compatibility For Echo-Need 10mm x 1.25mm LH (Silver) SRM140 SRM200 SRM202 SRM210 SRM225 SRM225i SRM225U SRM230 SRM250 SRM251 SRM260 SRM261 SRM265 SRM266 SRM266S SRM266T SRM266U SRM280 SRM280S SRM280T SRM280U SRM300 SRM302 SRM303 SRM340 SPEC: Trimmer head adapter size:10mm x 1.25mm LHF, Diameter:3-3/4 inch Used on Trimmer Line:2.4mmX2.5m MPN: Echo 99944200907 99944200900 99944200902 Speed-feed 400，Speed-feed-375 Shindaiwa 78890-18000, 78890-18001, 78890-11000, 78890-30000.
