3 mm nylon manually spooled net; 100 x 100 m mesh. Other options available upon request. “Klein” K40 guide rail for the sideways movement of the screen, with a pulley with ‘S’-shaped hooks, limit switches and splices. Manually activated system with sideways roll-up. Metal guide rails and Klein double carrier steel runners. Metal structure comprising back supports and pipe on which to place the static boundary net to protect the wall. Net is sewn onto the support. The structure adapts to its location: wall or ceiling.