Plug/patch combos?

[Tmall]

Originally Posted by Rider

How can you be sure the plug is that same compound as the tire? When you are talking about a contact patch the size of a credit card, a 1 inch diameter plug is a large portion of that contact patch. If it was the same compound I'd feel safer......

Why does the plug have to be the same compound? I get pebbles embedded in my tires, they don't knock me over.

The plug goes through from the inside, the patch is inside, and both of them have glue, friction, air pressure, and vulcanization holding them in place.