Three-gang brass combination carpet and tile flange, 6.080" x13.310" (154.4mm x 338.1mm). Accepts Ortronics MAB6TJ TracJack and MAB3S2 Series II, and Wiremold CM Series Open System adapters, sold separately. NOTE: Brass cover plates can only be used with brass flanges. Brushed aluminum flanges come with beveled edges.