The Aquaiaw Shower Arm and O-Ring Flange is a 3 inch solid brass round piece that must be installed by professional contractors. It comes in a matte black finish and is designed for modern bathroom styles. This product is equipped with a rainfall shower compatibility and features solid brass construction for durability. The item includes a flange and has a 15/16 inch diameter round heavy-duty solid brass tube material. With a sleek design and special features, this shower arm and flange set is a stylish and practical addition to any bathroom.