I was always wandering why should we store a huge spare wheel in a car instead of some device that can fast repair a wheel. This question constantly came to my mind until some day I saw a winter chains for a wheels. This was the starting point for the development of my device. I took the same principle and understood that it can solve a lot of problems! First of all it save a lot of space in a car. Secondly it doesn't need a lift jack. Thirdly it's much more faster than to change the whole wheel. All you need to do if the accedent happent is to put on and fix the cover. Than to blow up the device and that's it! It will save your wheel disk and give you possability to drive to the nearest tire mounting.