Using self-developed TPU film and polyester fabric composite fabric , through a special welding and self-sealing technology to achieve a completely sealed and long time airtight impermeable function, can be soaked in water for a long time, storage Water, inflatable use. Uses: Precious and moisture-proof items are placed in the bag as a waterproof bag, and the water is stored in the bag as a water storage bag, and the inflatable bag is used as a creature (floating).