Our Polished Brass raised plate range are beautifully crafted with a sleek profile. Each plate has a polished shiny finish. Plate Dimensions. 1 Gang Plug Socket - 88 x 88 x 8mm. 2 Gang Plug Socket - 148 x 88 x 8mm. Fits into a 25mm - 35mm standard UK wall back box. Product Details. Finish: Polished Brass. Supplied with colour coded fixing screws & plastic gasket. Full fitting instructions included. All items in this range are tested and approved to BS1363 offering assured quality and safety.