Uses high-temperature resistant rubber material.Keeps water and moisture and foreign objects from entering your exhaust.Prevents humidity from entering the pipe as it cools down and condensation inside the pipe during storage.Seals the exhaust while washing your ATV or Motorcycle.To reduce noise when moving in or out of the residential district.If you do not use motorcycle in Winter,you can plug the exhaust pipe with it to prevent corrosion.Easy to use,just plug it directly into the muffler of exhaust pipe of motorcycle to use.Compatible with exhaust pipe,silencer,etc.Tapered fit (15-38mm/0.59-1.5 inch),measure the inner diameter of your exhaust muffler for proper fitment.Note:Please make sure the size is fit for your motorcycle.Package Include:1 x Exhaust Plug