Jaquar Shower Arm (SHA-CHR-455L600)-Shower Arm 600X25X25mm Square Shape for Wall Mounted Showers with Flange. The Jaquar Shower Arm (SHA-CHR-455L600) is a square-shaped shower arm that is designed for wall-mounted showers. It has a length of 600mm and dimensions of 25mm x 25mm. The shower arm also comes with a flange for easy installation.