HIPA Air Filter + Spark Plug + Fuel Filter + Primer Bulb for STIHL FS90 FS100 FS110 FS130 String Trimmer Fitment models: STIHL FS90 FS100 FS110 FS130 string trimmer Package include: 1 x air filter, 1 x spark plug, 1 x fuel filter, 1 x primer bulb