Qauick Exhaust Muffler with Bolt Gasket Screws for STIHL 029 039 MS290 MS310 MS390 replace 1127 040 0601 Ship from CA, fast delivery available 3 months warranty, high quality aftermarket muffler with bolt gasket screws Replace P/N: 1127 040 0601 Fits STIHL 029 039 MS290 MS310 MS390 Package include the items show in the picture