The form of the upper side is shaped with the same ray of bending of one of the trusses of which the structure of support of the coverages of the tents is composed, to which the screen has been suspended then during the installation.
The screen width is 60 m, it is 15 m high in the center and weighs around 350 kg.
The screen is installed at the beginning of the events in which is used and it is dismantled at their end.