New Pack of Air Oil Filter Spark Plug Kit for STIHL FS90 FS100 FS110 FS130 4 Mix Engine Replace 4180-120-1800 New high quality aftermarket air filter Fits for STIHL FS90 FS100 FS110 FS130 4 Mix Engine Replacement OEM # 4180-120-1800 Package includes 1 x air filter + 1 oil filter + 1 spark plug You will receive exactly what you see on the picture