?JINSANCHENG? vacuum tire (without inner tube) cold mending adhesive strip is made up by a kind of synthetic fiber and sulfuration glue, and using the heat energy of tire rolling to lead them sulfuration.?JINSANCHENG? vacuum tire (without inner tube) cold mending adhesive strip can mending 6mm hole of the tire . Free and easy to use our products during the mending .  Vacuum tire is a chemical solution tire seal that when installed inside a tire, will provide full time protection against air loss for the entire life of a tire! Without any leakage of the tire .