JG20-type inflatable tent structure: the main frame structure for the arc column: in front of 4 meters wide, depth 5 m long. 2.5 meters high, the curtain for the center front slit, zipper connections; about the stay of two windows, with screens shutter. Air bag material is 0.65mm PVC coated nylon gas clouds; balloon diameter: 250mm, into the release valve; tarpaulins and ground cloth materials: thicker PVC coated fabric; package size 102X55X60cm Weight: 65 kg.