TECH UL6 Uni-Seal Ultra Tire Repairs - One-Piece Stem and Cap Permanently Seals Punctures from Inside The Tire up to 1/4" (6mm), Box of 14.

these work like they're supposed to

They're Tech. What more do you need to know. When plugging tires, you need to pull through tread. So when you end up with only a wire from a well reamed hole, you have to wonder. Hmmm, me or patch plug. But do it 4 times in a row after reaming again, no more wondering. The brand we have been using was discontinued for quality issues. Now I know. 1st dozen boxes were good, but last several boxes were a disaster. Didn't pull much and install wire was coming out of plug extremely easily. Yes, they were cheaper in price, but they were good for a while. So now I've leaned my lesson. I wasted more on time and materials then if I just stayed with Tech Tire brand repair products from the get go. Techs quality in repair products is the best. And they are located here in the US. So that's a plus as well. Check them out. They have everything you need in tire repair business.

Will bye again