Naiture 19" Brass Straight L Shaped Extension Shower Arm with Flange, Extended Arm Perfect for Rainfall Shower Head, Brushed Nickel Finish Made from solid brass which will never get rust, this wall-mount shower arm extends your shower head 12", 15" or 19". Finish: Brushed Nickel Length: 19 Inch; Height: 3-3/4 Inch IPS: 1/2 Inch This arm is perfect for use with a rainfall shower head.