ALFI brand AB16GRW 16-Inch Round Wall Mounted Shower Arm for Rain Shower Heads, Polished Chrome Made of solid brass and chromed to a high polish finish. Traditional round pipe design. Perfect for round rain shower heads. Extra long curved gooseneck arm reaches 16", designed to be used for large shower heads. Standard threading dimensions, will work with any standard shower head. Swivels 180', allowing you to adjust it to the left or right towards the wall. Perfect for use with a rain shower head. Raised wall shower arm provides you with extra height.