Plate size: 95mm x 95mm (1 gang, 2 gang & 3 gang). Plate size: 95mm x 95mm (1 gang & 2 gang). Plate size: 155mm x 95mm (3 gang & 4 gang). Plate size: 155mm x 95mm (4 gang). The plate is made from brass which is then polished and lacquered.