What you said is not comprehensive. Where do you want to hang the banner? 1 The banner should be of good quality. It depends on the location. Try to pull the steel wire in a sheltered place. If you want to stay a little longer, you can say, 3. Reinforce the fixed points in the open area by yourself, and use tools to push up the four doorways, such as the plug, with the help of fixtures, such as cement columns, steel structures, or other places where the wind can't blow. Anyway, it depends on how long you need.