tire plugs
Keep in mind that radial tires when flexing have a sawing action on the "plug". This can result in the tire spitting the plug out, or air seeping between the plies and causing a separation. I only use plugs as a temporary fix and as soon as I can, I have the tire repaired with a patch. Our cars are to valuable to us to chance destroying a tire and crashing our cars. Just my .02, others may disagree.