Review on Say Goodbye to Flats with Stop Flats2 Road Bicycle Tire Liner! by Eugene Cox

Okay, maybe I'm missing something. But I do not think so. I have read the instructions several times. The problem is that you take a tightly wound coil and have to glue it somehow or become part of the hoop without glue. Bzzz. I bought my mountain bike 15 years ago and paid extra for protective inserts. It was a thin kevlar liner and they worked great. I've never had a puncture except one that came from an unprotected area. I was looking for the same thing, I didn't find it, I bought this junk. Ironically, after this fiasco and searching again, I found what I wanted. https://www.amazon.com/gp/product/B000U1W8FO/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 Although not clear, they mostly come in two sizes: road bike and mountain bike. Yes, more expensive, but they work and I've transplanted them from one tire to another several times. Just take out the hoop, use some spray glue and you'll be holding another hoop. Don't waste your money. Get something that will work for years to come.