THPG 174005 Double porcelain switch plate

174005 - Double covering made of 13 mm thick, black glazed porcelain.‎ This covering can be combined with all switches, push-buttons, dimmers and sockets from the switch system Porcelain black.‎ The junction boxes and special devices (thermostats, USB charging points) only fit into the special individual and system coverings for junction boxes.‎ Further info from manufacturer on 174005 THPG