Our Polished Brass raised plate, blank plates will give any interior a boost of modern, classic design. These are ideal for when you need to cover an existing hole. Each plate has a polished brass, shiny finish. Plate Dimensions. 1 Gang Plate - 88 x 88 x 8mm. 2 Gang Plate - 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 Finishes Available: Polished Chrome, Satin Chrome, Antique Brass, Satin Brass, Polished Brass, Matt Black, Black Nickel, Pearl Nickel, Stainless Steel & Georgian Cast Brass. Long-life design and unprecedented value for money make this the ultimate product for you. All items in this range are tested and approved to BS1363 offering assured quality and safety. For peace of mind these items come with a 10 Year Guarantee.