MMD has it. These things are relatively simple.

Go into any auto parts store and ask for one. I would use a "radial tire repair kit" well before I would ever snorkle that green goop into a wheel. (Talk about cleanup later!)

Along with a radial tire repair kit I recommend the following:

(1) An awl (sometimes needed to make the hole bigger to accept the plug)
(2) Pliers (to pull out the nail ,etc.)
(3) Razer blade (to cut off the plug even with the surface of the tire).

I dropped off my RR wheel this morning for the tire to be replaced and it took me some time to find the plug that I put in about 3 weeks ago. My brother in law (in the auto business) got after me about not replacing the tire and just going with the plug but it worked so well and I certainly am not racing this thing on the streets.

Dan