ITEM NAME:3/8"-7T Clutch Drum Chain Sprocket Bearing For STIHL MS290 MS310 MS390 ect. Description: 1Piece clutch drum + 1Piece bearing FITS: STIHL 029 034 036 039 MS290 MS310 MS390 Chainsaw, replace OEM 1125 640 2004 Material: Metal and plastic Size: approx. 8X8X3cm/3.15''X63.15''X1.18'' Package Includes: 1Piece clutch drum 1Piece bearing.FITS: STIHL 029 034 036 039 MS290 MS310 MS390 Chainsaw, replace OEM 1125 640 2004. 1Piece clutch drum + 1Piece bearing. 1Piece clutch drum. 1Piece bearing.