Dont let your bottom end get wet with the new Muc-Off Exhaust Bung! Made from a two-part flexible silicone rubber core and sleeve, it creates an awesome leak-proof seal to prevent water or other contaminants from getting into your exhaust pipe whilst youre cleaning or maintaining your machine. Its both 2 and 4-stroke compatible thanks to its removable two-part design. Its super easy to twist into place and comes with a handy lanyard to make removal easy!