Sorry, noob question. The toolkit in my used Leaf has the 3 metal parts shown on the top left of the photo at https://i.ebayimg.com/images/g/mSYAAOSw ... s-l500.jpg No jack, obviously . What do I use these for, especially that big beautifully threaded eyebolt? OK, lugnut wrench I can figure out, except that there's no spare to swap. Does that tire sealant actually work?