Bike Wash Kit includes an injection molded plastic wash cover with a thick rubber seal, a sample bottle of No-Toil Air Box Cleaner and an exhaust plug. Keep water out of your engine and get your air box clean inside and out. The No-Toil Bike wash kit provides excellent protection from water with the Air Box Cover and Exhaust Plug. While the Air Box Cleaner makes sure to clean any and all grease, grime and gunk out of the inside of your air box. Fits: Yamaha WR250F 2014-2019 WR450F 2016-2018 YZ250F 2014-2018 YZ250FX 2015-2017 2019 YZ450F 2014-2015 2017 YZ450FX 2016