Inflatable bunker 1:0.9mm,0.6mm and 0.55mm will be welcome. 2:hot air welding machine. Inflatable bunker Sunjoy manufactuer fun. 1,material:0.6-0.9mm pvc tarpauline2,color and style available3,repair kit and carrying bag4,we use hot air welding machine to manufactuer it5,digital printing6,Several specificate to you to choose favorite one.