I was extremely happy that this product is available at Amazon, because I already know it from my driving start time ago. Hirschtalgfett is optimal in order to avoid freezing of the car doors on the door seals. Application is very simple: one sweeps the door seals of his car to the outside with the pin and so that they are protected from freezing. Most rich one to two treatments per winter. Therefore my full recommendation for this product, that enough also of fertility long ago.