This automatic shoe cover machine uses the principle that the thermo shrinkable film will shrink at proper temperature. It is different from other shoe cover machines. This shoe cover machine only takes seconds to let the PVC film become shoe cover and cover your shoes. It automatically outputs, cuts the PVC film and provide hot air, It can cover shoes of different sizes, a layer of film will cover the lower part of the shoe. http://www.quen-tech.com/