This modern shower head is made out of solid stainless steel, not plastic, so it\’s made to last, not just to look good., A shower arm is not included. This head can be used with either wall or ceiling mounted arm. Never be scalded again by entering a shower that is just too hot!, Standard size: threading is universal so it will fit any standard shower head by simply unscrewing the old one by hand and attaching the new one.High Quality.