Works great, just as advertised, holding 30PSI
nail hole was in a flat surface just above the tread so I trimmed the patch to fit following the instructions (gave the tire a bath, let it dry, used the sandpaper, then rubbing alcohol, then sandpaper again) and applied the adhesive in drops but it all run together by the time I applied the patch. All was good tho. Held pressure on it for a full minute, let it sit overnite, aired it up 9 psi, let it sit a day, then mowed 2 hrs and still had 9 psi. So far I'm happy!