49mm Cylinder Piston Kit Compatible with Stihl 029 039 MS290 MS390 MS310 Chainsaws Replacement Spare Parts for MS 290 310 390 _x000D_ For Stihl 029 MS290 MS390 MS310 Chainsaw _x000D_ _x000D_ Package Includes:1 x Cylinder, 1 x Piston, 1 x Pin, 2 x Ring, 2 x Circlip. _x000D_ _x000D_ Diameter: 49mm _x000D_ _x000D_ Note: _x000D_ 1,High quality replacement parts,please compare your original products carefully with the pictures if you are not sure,or contact us. _x000D_ 2,Due to lighting effects, monitor's brightness, contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item. _x000D_ 3,Please allow 1-2mm distinguish due to manual measurement, thanks. _x000D_ _x000D_ _x000D_ _x000D_