HIPA (Pack of 2) Crankshaft Bearing and Oil Seal fit for STIHL Ms210 Ms230 Ms250 021 023 025 Chainsaw Inside diameter of bearing is 15mm and outside is 35mm oil seal is 15x25x5 Fit stihl 021/023/025/ms210/ms230/ms250 chainsaw Package include 2x bearing + 2x oil seal