1,Same backpack for 4 flag shapes,more choices for your events 2, ... and transport,1kg per pc 1,Revolutionary design for the backpack--Same backpack for more than 4 flag shapes2,Make yourself stand ... :Backpack F banner,flag size 103cm*52cmBackpack S banner,flag size 122cm*51cmBackpack H banner,flag size 80cm*40cmBackpack X banner,120cm*50cm revolutionary backpack banner system/human banner ...