Good points Dust D, I have a small inflatable porch awning, with just a single half round inflatable tube, and so far no punctures, yet, the patches that come with it are really very flimsy, so I carry a roll of the clear "Gorrila" tape 2" wide and grip wonderfully, I have used it on an inflatable hottub, which is pressureised at 10 to 15 psi, so I have little dought unless the leak is on a seam that t would work on the tubes.